Category Archives: xaminmo

Josh’s personal blogging. See also:
http://facebook.com/xaminmo
http://xaminmo.dreamwidth.org
http://xaminmo.livejournal.com
https://plus.google.com/+xaminmo
http://xaminmo.blogspot.com/
See the trend? Tumbler, Twitter, etc are all xaminmo.

Pride

Posted by xaminmo

June is Pride Month. Pride is about awareness and community where people can find some manner of safety from harm for being different from the majority expectation.

Roughly 10% of people in western society are not strictly heterosexual, with variation from 5% to 17% depending on region and other demographics. This is for people willing to privately identify as non-heterosexual.

There are numbers of mostly-straight people who don’t self-identify as less than fully straight. There are people who engage in same-sex relationships who do not identify as LGBTQ+. There are people who are asexual, non-binary, intersex, or other variations of gender and sexual characteristics, identity, etc. who may not identify as non-hetero.

This is not new either. As far back as the 1940s, we find surveys that show a little over 11% identified as K3 (equal attraction to “both” sexes). Plenty has changed in terminology and understanding since then.

While you may think “the gays” are a weird, fringe group, that’s really not the case. It’s more that many people are private about their identity, orientation, and activities. Private does not mean ashamed. It means none of your business.

It becomes everyone’s business when bigotry and propaganda is used to oppress the free expression of constitutional rights, or is used to actively harm others. Then the greater community, including allies, has to stand up.

Plenty of people disagree, including some people in positions of authority or power.

If you value the rights and freedoms of this country, then even if you disagree wholeheartedly with LGBTQIAA+ lives, you still owe it to yourself to help stand up for the rights of Americans, lest you find there is no one left to stand with you when your rights are under attack.

Pride Month is about being proud to be yourself, and supporting everyone else’s right to be themselves, no matter if it’s low-key or freaky. It’s the whole month until everyone can be proud year round without risk of being killed, fired, ostracized, or otherwise mistreated simply for not meeting expectations of others.

Happy pride month to all!


Modern Crusade Dream

Posted by

We were at a Western hotel in Mumbai. The staff were white, and everything catered to the wealthy. Business was off, so we got to visit sometimes for lunch. Something happenned to the staff, and the east side dining hall got no service for hours after seating patrons.

The manager comped four tables, including ours, and gave us a his card. It said we could come in after 11:30pm and before 2:30 am to get leftovers and seconds (errored orders) buffet style for free. But, really, we could come in by 9:30pm, and until 5:30am. Lots of leftovers due to slow business.

This helped because we were always busy in the slums, and never knew when we’d get back. We were a mercenary tactical / investigation team, with not as much budget as we’d like, but enough to get what we needed. A bit of extra time in the fancy hotel was welcome.

We were at odds with the CIA, so we were on alert when we found the two familiar agents standing in our equipment room. They were fatigued, and just said, “load up.”

A Christian extremist group was hunting internationally, kidnapping members of our team, and forcing them to call in warnings. “Do not touch us! Do not touch us!”

We would find the team member, and we would have 10 minutes to query them, look through pockets, etc. Then they would get confused, seize, foam at the mouth, and die. If we touched them, it was contagious, and would get the next person. There would always be awriting, in Arabic, that said “do not touch us”.

This time, they needed our help. The extremists seemed nearly impossible to identify, but always left a subtle clue. We needed more than just that they hated Arabs, they considered themselves Christians, and that they were very well funded.


Safe spaces for identity

Posted by xaminmo

The Internet has given people the ability to find safe spaces. I don’t mean impotent bigots who group and commit violence. I mean people who would typically be abused or killed for being “different.” Many distinctions are not “new”; they have just not been as repressed in the last 30 years.

A prime example is terminology around gender and sex. Binary simplicity is not natural. It is just all some of us learned as kids. No one likes feeling like an idiot, so here are some terms to help go through the mental adjustment privately without having to defend what was socially accepted when we grew up, nor a need to attack the “new” concepts.

Sex – This is body parts. This is not binary. About 1.6% of people are born with some kind of combination. Some is visible, but some is not. Genes, environment, and random chance all have complex effects. Some people even change parts naturally when they go through puberty! This is not unique to humans.

Gender Identity – This is in the mind. Maybe machismo, or maybe delicate behavior. Maybe things match the body, and maybe they don’t. Just like you have a preferred name, and sometimes people call you the wrong name, people have an internal identity that may or may not match external expectation or physical traits.

Gender Role – This is the part you play in society. It may or may not match the above two. This can be complex. Even as simple as liking the outdoors, or not, can be seen as somewhat gender aligned. “The Man” or “The Woman” of the house are common, simplified terms.

Orientation – Who and how you like people. The social expectation is a pile of traits for one gender, and a different pile of traits for the other, with both only being attracted to the polar opposite. In reality, it’s much more complicated, and both personal and social barriers affect the expression of this. Some people have only emotional intimacy, but no romantic or sexual intimacy. Some people are attracted to people more or less like themselves. Etc etc. Any combination is possible. This can absolutely encompass any kind of relationship, but typically is used to address people for whom you have extra appreciation or affection beyond casual acquaintance. This can be as simple or complex as required.

Someone’s identity should never be a threat to you. If you are confused or threatened, consider why, and sort out how to be a nice person about it. Asking questions can be okay if you are genuinely concerned for your own comprehension, but not if you are spiteful or dismissive, or trying to trap or demean someone for not meeting your expectations. A religion is NOT a valid excuse to treat people with hostility nor deprive them of rights for being different.

This is by no means comprehensive. This is more than enough to get some gears turning.

As Star Trek says, there is “infinite diversity in infinite combinations”.


NetApp vs IBM terminology

Posted by xaminmo

NetApp is really vague about terminology translation, but a traditional RAID is called a volume group, and a distributed RAID is called a disk pool.

IBM calls both “managed disks”, and just referrs to them as RAID/TRAID vs DRAID.

The group of these is called an aggregate in OnTap, or a managed disk group in Spectrum Virtualize.

The next layer is a volume in NetApp, or a child pool (optional) in IBM.

NetApp then lets you share a volume via NFS or CIFS, or create a LUN which is really just a well aligned file in a volume. IBM calls them virtual disks, but does not offer NFS/internally.

IBM offers SONAS (Scale Out NAS) which can take LUNs from SVC and share them out. SONAS was called V7000 Unified at one point, but now the storage is unbundled. It uses General Parallel File System (GPFS aka Multi Media File System), Cluster System Manager, and a few other tried and true technologies under the covers giving a lot of options for expansion, but also a cost.


mdadm fewer number of larger devices

Posted by xaminmo

I could not find where people were confident in the possibility of reshaping an MDAdm array to a fewer number of larger devices.  Plenty of recent people said you cannot do this.  I made this happen, and the biggest concern is making sure you provide enough space on the new devices.  There are some safety warnings that help with this.  I did have to resize my new partitions a couple of times during the process.

I did this because my rootvg needed to move to NVMe, and I only had room for 4 devices, vs the 5 on SATA.  The OS I used was Debian 10 Buster, but this should work on any vaguely contemporary GNU/Linux distribution.

There are always risks with reshaping arrays and LVM, so I recommend you back up your data.
There are always risks with reshaping arrays and LVM, so I recommend you back up your data.
There are always risks with reshaping arrays and LVM, so I recommend you back up your data.
There are always risks with reshaping arrays and LVM, so I recommend you back up your data.

First, build the new NVME partitions
I have p1 for /boot (not UEFI yet, and I’m on LILO still, so unused right now).
I have p2 for rootvg, and p3 for ssddatavg

parted /dev/nvme0n1
mklabel gpt
y
mkpart boot ext4 4096s 300MB
set 1 raid on
set 1 boot on
mkpart root 300MB 80GB
set 2 raid on
### Resizing last
rm 3
resizepart 2 80G
mkpart datassd 80G 100%
set 3 raid on
print
quit

Repeat for the other devices so they match.
My devices looked like this after:

Model: INTEL SSDPEKNW020T8 (nvme)
Disk /dev/nvme3n1: 2048GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number Start End Size File system Name Flags
1 2097kB 300MB 298MB boot boot, esp
2 300MB 80.0GB 79.7GB root raid
3 80.0GB 2048GB 1968GB datassd raid

Clear superblocks if needed
If you are retrying after 37 attempts, these commands may come in handy:

### wipe superblock
for i in /dev/nvme?n1p1 ; do mdadm –zero-superblock $i ; done

### Wipe FS
for i in /dev/nvme?n1p1 ; do dd bs=256k count=4k if=/dev/zero of=$i ; done

Rebuild /boot – high level
This is incomplete, because I have not changed my host to UEFI mode.  The reference is good, but incomplete.

### Make new array and filesystem
mdadm –create –verbose /dev/md3 –level=1 –raid-devices=4 /dev/nvme*p1
mkfs.ext4 /dev/md3
mount /dev/md3 /mnt
rsync -avSP /boot/ /mnt/

### Install GRUB2
mkdir /boot/grub
apt update
apt-get install grub2
### From dpkg-reconfigure: kopt=nvme_core.default_ps_max_latency_us=0

### Make the basic config
[root@ns1: /root]
/bin/bash# grub-mkconfig -o /boot/grub/grub.cfg
Generating grub configuration file …
Found linux image: /boot/vmlinuz-4.19.0-10-amd64
Found initrd image: /boot/initrd.img-4.19.0-10-amd64
Found linux image: /boot/vmlinuz-4.19.0-5-amd64
Found initrd image: /boot/initrd.img-4.19.0-5-amd64
done

### Install the bootloader
[root@ns1: /root]
/bin/bash# grub-install /dev/md3
Installing for i386-pc platform.
grub-install: warning: File system `ext2′ doesn’t support embedding.
grub-install: error: embedding is not possible, but this is required for cross-disk install.

[root@ns1: /root]
/bin/bash# grub-install /dev/nvme0n1
Installing for i386-pc platform.
grub-install: warning: this GPT partition label contains no BIOS Boot Partition; embedding won’t be possible.
grub-install: error: embedding is not possible, but this is required for RAID and LVM install.

Need to convert to uefi before installing the bootloader will work.  I also rsync’d my old /boot into the new one, etc.  That is moot until this is corrected.

Swap out my SATA members with SSD

Original members are 37GB, and new are 77GB.  It was time to go bigger, and I found that I kept coming up a few gigs short trying to match size (5×37 vs 4×57).

The goal is to fail a drive, remove a drive, then add a larger SSD replacement. After the last drive is removed, we reshape the array while it is degraded, because we don’t have a 5th device to add.

### Replace the first device
mdadm -f /dev/md1 /dev/sda2
mdadm -r /dev/md1 /dev/sda2
mdadm –add /dev/md1 /dev/nvme0n1p2

### wait until it’s done rebuilding
#mdadm –wait /dev/md1
while grep re /proc/mdstat ; do sleep 20 ; date ; done
mdadm -f /dev/md1 /dev/sdb2
mdadm -r /dev/md1 /dev/sdb2
mdadm –add /dev/md1 /dev/nvme1n1p2

### wait until it’s done rebuilding
#mdadm –wait /dev/md1
sleep 1 ; while grep re /proc/mdstat ; do sleep 20 ; date ; done
mdadm -f /dev/md1 /dev/sdc2
mdadm -r /dev/md1 /dev/sdc2
mdadm –add /dev/md1 /dev/nvme2n1p2

### wait until it’s done rebuilding
#sleep 1 ; while grep re /proc/mdstat ; do sleep 20 ; date ; done
mdadm –wait /dev/md1
mdadm -f /dev/md1 /dev/sdd2
mdadm -r /dev/md1 /dev/sdd2
mdadm –add /dev/md1 /dev/nvme3n1p2

### Remove last smaller device
#sleep 1 ; while grep re /proc/mdstat ; do sleep 20 ; date ; done
mdadm –wait /dev/md1
mdadm -f /dev/md1 /dev/sde2
mdadm -r /dev/md1 /dev/sde2

Reshape the array

Check to make sure your required array resize is larger than the LVM space used in your PV.  

[root@ns1: /root]
/bin/bash# mdadm –grow /dev/md1 –raid-devices=4 –backup-file=/storage/backup
mdadm: this change will reduce the size of the array.
use –grow –array-size first to truncate array.
e.g. mdadm –grow /dev/md1 –array-size 155663872

[root@ns1: /root]
/bin/bash# pvs /dev/md1
PV VG Fmt Attr PSize PFree
/dev/md1 rootvg lvm2 a– 102.50g 8.75g

If you come up short, you can shrink a PV a little, but often, there are used blocks scattered around.  There is no defrag for LVM, so you would have to manually migrate extents.  I was too lazy to do that, and instead, grew my PV from 103GB to 155GB.  I kind of need the space anyway.

# pvresize –setphysicalvolumesize 102G /dev/md1

Final reshape here

Now that I know the size MDADM wants to use, I use that exactly (or smaller, but larger than the PV size currently set.)

mdadm –grow /dev/md1 –array-size 155663872
mdadm –grow /dev/md1 –raid-devices=4 –backup-file=/storage/backup1
sleep 1 ; while grep re /proc/mdstat ; do sleep 20 ; date ; done

One of the drives was stuck as a spare.

This is not guaranteed to happen, but it does happen sometimes.  Just an annoyance, and one of the many reasons using RAID6 is much better than RAID6.  Also, errors can be properly identified better than with RAID5, and various other things.  Just use RAID6 for 4 drives and up.  I promise, it’s worth it.  3 drives can be RAID5, or RAID10 on Linux, but it’s not ideal.  Also, if you have a random-write-intensive workload, then you can use RAID10 to save some IOPS at the expense of more drives used to protect larger arrays, and inferior protection.  (eg, it is possible to lose 2 drives on a 6 drive RAID10 and still lose data, if they are both copies of the same data.)

[root@ns1: /root]
/bin/bash# mdadm /dev/md1 –remove faulty

[root@ns1: /root]
/bin/bash# mdadm –detail /dev/md1
/dev/md1:
State : active, degraded

Number Major Minor RaidDevice State
0 259 15 0 active sync /dev/nvme2n1p2
1 259 17 1 active sync /dev/nvme3n1p2
2 259 11 2 active sync /dev/nvme0n1p2
– 0 0 3 removed

4 259 13 – spare /dev/nvme1n1p2

Remove and re-add the spare

The fix was easy.  I just removed and re-added the drive that was stuck as a spare.

[root@ns1: /root]
/bin/bash# mdadm /dev/md1 –remove /dev/nvme1n1p2
mdadm: hot removed /dev/nvme1n1p2 from /dev/md1

[root@ns1: /root]
/bin/bash# mdadm /dev/md1 –add /dev/nvme1n1p2
mdadm: hot added /dev/nvme1n1p2

Check status on rebuilding
[root@ns1: /root]
/bin/bash# mdadm –detail /dev/md1
/dev/md1:
State : active, degraded, recovering

Number Major Minor RaidDevice State
0 259 15 0 active sync /dev/nvme2n1p2
1 259 17 1 active sync /dev/nvme3n1p2
2 259 11 2 active sync /dev/nvme0n1p2
4 259 13 3 spare rebuilding /dev/nvme1n1p2

Alternatively, this might have been frozen
cat /sys/block/md1/md/sync_action
frozen
echo idle > /sys/block/md1/md/sync_action
echo recover > /sys/block/md1/md/sync_action

Grow to any extra space

Once it is done recovering and/or resyncing, then you can grow into any additional space.  Since we used the value above to set the size “smaller”, we do not have to do this.  Note, when resizing “UP”, it is technically possible to overrun the bitmap.  This example drops the bitmap during the resize.  That is a risk you’ll have to weigh.  A power outage during restructure without a bitmap could be a bad day.

mdadm –grow /dev/md1 –bitmap none
mdadm –grow /dev/md1 –size max
mdadm –wait /dev/md1
mdadm –grow /dev/md1 –bitmap internal

Expand LVM to use the new space

[root@ns1: /root]
/bin/bash# pvresize /dev/md1

[root@ns1: /root]
/bin/bash# pvs
PV VG Fmt Attr PSize PFree
/dev/md1 rootvg lvm2 a– <148.38g 54.62g

Other Notes 1:

I also dropped/readded a drive with pending reallocation sectors.  That is entirely unrelated to the reshaping above, but I’ll dump the log here for my own reference.

### See the errors
/bin/bash# smartctl -a /dev/sda
smartctl 6.6 2017-11-05 r4594 [x86_64-linux-4.19.0-10-amd64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Western Digital Red
Device Model: WDC WD30EFRX-68EUZN0
Firmware Version: 82.00A82
User Capacity: 3,000,592,982,016 bytes [3.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5400 rpm

Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always – 1
196 Reallocated_Event_Count 0x0032 199 199 000 Old_age Always – 1
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always – 2
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline – 0

### See what arrays use this disk
[root@ns1: /root]
/bin/bash# cat /proc/mdstat | grep -p sda
md0 : active raid1 sda1[4] sdd1[1] sde1[3] sdc1[2] sdb1[0]
271296 blocks [5/5] [UUUUU]
bitmap: 0/1 pages [0KB], 65536KB chunk

md2 : active raid6 sda3[3] sdb3[2] sdd3[4] sdc3[1] sde3[0]
8682399744 blocks level 6, 512k chunk, algorithm 2 [5/5] [UUUUU]
bitmap: 0/11 pages [0KB], 131072KB chunk

### Remove and re/add so it re-writes
[root@ns1: /root]
/bin/bash# mdadm /dev/md0 –fail /dev/sda1
mdadm: set /dev/sda1 faulty in /dev/md0

[root@ns1: /root]
/bin/bash# mdadm /dev/md0 –remove /dev/sda1
mdadm: hot removed /dev/sda1 from /dev/md0

[root@ns1: /root]
/bin/bash# mdadm /dev/md0 –add /dev/sda1
mdadm: hot added /dev/sda1

[root@ns1: /root]
/bin/bash# cat /proc/mdstat | grep -p sda
md0 : active raid1 sda1[5] sdd1[1] sde1[3] sdc1[2] sdb1[0]
271296 blocks [5/4] [UUUU_]
[=================>…] recovery = 87.3% (237440/271296) finish=0.0min speed=118720K/sec
bitmap: 0/1 pages [0KB], 65536KB chunk

md2 : active raid6 sda3[3] sdb3[2] sdd3[4] sdc3[1] sde3[0]
8682399744 blocks level 6, 512k chunk, algorithm 2 [5/5] [UUUUU]
bitmap: 0/11 pages [0KB], 131072KB chunk

### Remove/Readd the bigger array member
[root@ns1: /root]
/bin/bash# mdadm /dev/md2 –fail /dev/sda3
mdadm: set /dev/sda3 faulty in /dev/md2

[root@ns1: /root]
/bin/bash# mdadm /dev/md2 –remove /dev/sda3
mdadm: hot removed /dev/sda3 from /dev/md2

[root@ns1: /root]
/bin/bash# mdadm /dev/md2 –add /dev/sda3
mdadm: hot added /dev/sda3

Other Notes 2:

I also made a new array on partition 3.  That is entirely unrelated to the reshaping above, but I’ll dump the log here for my own reference.

[root@ns1: /root]
/bin/bash# mdadm /dev/md4 –create -l 6 -n 4 /dev/nvme?n1p3
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md4 started.

[root@ns1: /root]
/bin/bash# pvcreate /dev/md4
vgcreate Physical volume “/dev/md4” successfully created.

[root@ns1: /root]
/bin/bash# vgcreate ssdvg /dev/md4 -Ay -Zn
Volume group “ssdvg” successfully created

[root@ns1: /root]
/bin/bash# vgs
VG #PV #LV #SN Attr VSize VFree
datavg 1 7 0 wz–n- <8.09t 704.12g
rootvg 1 7 0 wz–n- <148.38g 54.62g
ssdvg 1 0 0 wz–n- 3.58t 3.58t

[root@ns1: /root]
/bin/bash# cat /proc/mdstat
Personalities : [raid1] [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid10]
md4 : active raid6 nvme3n1p3[3] nvme2n1p3[2] nvme1n1p3[1] nvme0n1p3[0]
3844282368 blocks super 1.2 level 6, 512k chunk, algorithm 2 [4/4] [UUUU]
[>………………..] resync = 1.0% (20680300/1922141184) finish=216.5min speed=146336K/sec
bitmap: 15/15 pages [60KB], 65536KB chunk

md3 : active raid1 nvme3n1p1[3] nvme2n1p1[2] nvme1n1p1[1] nvme0n1p1[0]
289792 blocks super 1.2 [4/4] [UUUU]

md0 : active raid1 sda1[4] sdd1[1] sde1[3] sdc1[2] sdb1[0]
271296 blocks [5/5] [UUUUU]
bitmap: 0/1 pages [0KB], 65536KB chunk

md1 : active raid6 nvme1n1p2[3] nvme3n1p2[1] nvme2n1p2[0] nvme0n1p2[2]
155663872 blocks level 6, 256k chunk, algorithm 2 [4/4] [UUUU]
bitmap: 1/1 pages [4KB], 65536KB chunk

md2 : active raid6 sda3[5] sdb3[2] sdd3[4] sdc3[1] sde3[0]
8682399744 blocks level 6, 512k chunk, algorithm 2 [5/4] [UUU_U]
[=>……………….] recovery = 6.6% (191733452/2894133248) finish=349.9min speed=128713K/sec
bitmap: 0/11 pages [0KB], 131072KB chunk

unused devices: <none>


lancache

Posted by xaminmo
TLDR: I now only have to download microsoft and steam updates once for all 13 systems in the house.
 
I finally set up a LAN Cache. I got tired of windows update sneaking in and eating all of my bandwidth, killing movies, etc. We have 4 regular Steam clients, plus 3 that don’t run very often; and we have 13 Windows 10 systems. It seems like settings always revert, and they update whenever they want, or at 100% bandwidth a few months after setting the throttles low.
 
https://lancache.net/ caches steam, windows updates, and several others. It was much easier to set up than a squid webproxy on my router. This should make it so anything that is downloaded only downloads once. only have 200GB to throw at it right now, but that should help a bunch. I need to set it to auto-start on boot, and to give it more space eventually, but I’m just really happy it’s working now. And apache, SSLH, and DNSMASQ on the same host still working.
 
My router already pointed to my server for DNS Masquerading, so I could manually override things. I added a second IP address, and modified lancache.yml to put all services only on the new IP address. I updated dnsmasq.conf to forward to lancache only, because it was not obeying the fallback rules.
 
This means if lancache dies, I have to edit dnsmasq to keep the home network functional. So many layers.

Spacetime Dream

Posted by xaminmo

I had one of those dreams during waking that was both vivid and meaningful. It was in a village, with many people around. Standing inside, but near the lip of a basin. There were trees, complex terrain, but not a lot of big rocks. Everything was lush and green in the late afternoon, early evening. Before dusk, but no direct beams of light seen.

The basin wasn’t actually a basin. It was curved spacetime. Gravity did not “feel” strange, but it did “look” like we would walk down into the basin to go forward. Left and right seemed normal. Perhaps the Earth had become a Mobius Strip in spacetime, not a torus. We were looking across the gap from the inside.

There was no Sun in this universe. It just became brighter and darker over time. Shadows were always towards the center of the strip, but if you looked behind you, you would see the curce of the Earth going upwards.

We were looking up at the moon. The moon was physically smaller, but seemed much larger because of how close it was. It took up maybe 5-10 degrees of arc worth of the sky. The moon travelled perpetually in the center, because really, it stayed stationary. The Earth’s surface rotated continually, almost flowed, across the Mobius, dragging atmosphere with it.

Left to right, there were lots of cirrus clouds, with a thick line of them. You could see the clouds striking and billowing against the line of clouds. No dust was coming off of the moon, and it was very dense — more massive than IRL.

In the distance, instead of blackness, or stars, it was the darkest blue. You could see the lights of night-time, creating an outline of the entire continent of Africa, isolated, without Europe nearby. It was almost directly across it seemed, but it was also up vertically because of the curvature.

We understood, all of this in a way, because we had grown up with it. This was still an amazing sight, just like IRL how people get excited for a solar eclipse, or a blood moon, or a comet, or a meteor shower, or any other less common movements.


Light and Disinfectant

Posted by xaminmo

So, time to crank up the UV and disinfectants into our lungs, huh? Remember folks, if you die, the virus dies too!

TRANSCRIPT: Donald J. Trump said on 4/23/20: “Supposing we hit the body with a tremendous, whether it’s ultraviolet or just very powerful light, and, I think you said, that hasn’t been checked but you’re going to test it? And then I said, supposing you brought the light INSIDE the body, which you can do either through the skin or, uh, in some other way….and then I see the disinfectant, where it knocks it out in a minute, one minute, and is there a way we can do something like that? Uh, by injection inside, or almost a cleaning, because you see it gets in the lungs and it does a tremendous number on the lungs, so it would be interesting to check that, but you’re going to have to use medical doctors for that. But it sounds interesting to me.”

EXPLANATION: UV and disinfectants kill C19, and he was suggesting introducing those to the inside of a body may be helpful. He said Brix would be looking into that.

There is zero justification for trying to say what he suggested might be valid. It is so obviously ignorant that it is valid to dismiss it on the spot. Brix’ obvious pain on her face while having to listen to this makes perfect sense.

The suggestions are also careless for not being clear to the moderately large number of people who absolutely will interpret this to mean they should resume drinking diluted bleach.

If this kind of thing worked, then no infectious disease would ever be possible anymore. It’s like saying we should boil people to cure the disease. Sure, it would destroy the germs, but also destroy the person’s cells, aka them.

The people defending what he said are doing so out of ideological loyalty, or blind faith, or abject ignorance. Think of the Golgafrenchams and their wheel. It is not worth your time trying to get understanding into their minds. Either someone understands, or they do not.


Orbital Mechanics and Friends

Posted by xaminmo

I had a dream that I was on a space station, and our old van was a shuttle. An escape pod failed as we were leaving the station, and my dream went into orbital mechanics ala Kerbal Space Program. On waking, I pondered orbital mechanics, and realized it’s just like people.
Community is like orbital space. Each person is a satellite. Your interests, drives, life and death all define your orbit. Your location is the barycenter of your orbit, the focus of your ellipse.
Along your path, you will pass near other satellites, people. If your orbits are not close, it may be a single encounter. Maybe your orbit lines up repeatedly. Maybe not. Communication tech is better mowadays, and you can talk to someone orbiting Jupiter with a little lag.
But, you only have so much fuel (drive) to change your orbit. And if you aim for someone not on on a very similar path, you almost certainly guarantee that your paths will diverge more widely.
Unless you grab on and become one peice in a new, combined orbit, a risky maneuver. Instead, it’s less disruptive to adjust your orbit on each pass. Move your center when you can, and look for other satellites near you.  
Which satellites seem familiar. Is there a shared mission or purpose. Can you benefit? Are they from a friendly nation, or do you need to be on guard? If they are new and suddenly there, are they a risk for knocking you out of your planned orbit, or dragging you down the gravity well? If you join up, they be too big of a mass or too tightly coupled for you to change your orbit later? Or are they a whole new anchor in space to orbit freely, yet still taking you for a ride?
The best are when you orbit the others who orbit you, or you share closely overlapping orbits. If inclination matches, you meet more often than every orbit.
I have lots of acquaintances in unmatched orbits. waves
I have several friends in harmonic matched orbits. Hi Hi Hi Hi Good to see you again.
I have a few people that I try to keep my orbit matched with. I definitely have my own mass and velocity that makes this difficult sometimes, but I appreciate those on similar missions burning their limited fuel to help us stay in sync.


Tsunami

Posted by xaminmo

I have been maintaining projections on omnitech.net/blog and fb.com/xaminmo .

Basically, it is time to hide from society right now. There are a lot of people still spreading it because it is their right to be free. If you get it now, there will be no resources to help you if you get very sick.

Projections may change by Wednesday, since that is 12 days after the national emergency was declared. If we cut our spread in half, then we get almost an extra week of respite.

Except, I know groups of people who were congregating for public meals as recently as Wednesday, and group exercise just Friday. 6 feet at 14mph is not enough. I don’t have the ability to get people to trust me. Either they see, or they don’t. Plenty actively disbelieve. It’s core to their being to believe exactly opposite of me.

We got complacent, because we’re “not like Italy. Look, they are older, and we were infected sooner. We’re so much better, and our death rate is lower.”

Italy started at +25% per day, and brought it down to +12% per day.

The US started at +5-10%, but for weeks has been spreading at +35% per day. Texas, my state, has to do it bigger. We’re spreading at +47%.

So, April 2, Texas ICU reserve capacity is overrun. A week later, all Texas hospital reserve capacity is overrun. I don’t know where in there we run out of trained medical professionals and supplies to treat safely.

If we did a great job when the pandemic was declared, we get 4-6 more days. A week prior, it will look like a normal day, a little busy, and probably still no toilet paper.

I wish it were not so, but the window of opportunity to change this course is almost closed, and we seem to be accelerating towards it, not slowing.

A tsunami is coming, and we have not even felt the tremor yet.