Replacing TSM / ISP server

I ran into an issue where a primary TSM 7.1.8 server was broken, and it was easier to just move all of the clients over to the secondary 8.1.5 server. These used the new TLS encryption, and I kept running into issues.

    —————

First, I physically shut down the old server, and updated the new server to use the IP as an alias by editing /etc/network/interfaces. (Ubuntu 16 LTS)

    —————

Various errors included:
ANR8599W The connection with host address:host port failed due to an untrusted server certificate. An attempt to reconnect and establish certificate trust might follow.

ANR2284S The server master encryption key has changed. Passwords protected with the previous master encryption key are not available.

I had to make the server trust itself again with:[LINK]
dsmcert -add -server TSM -file /home/tsminst1/cert256.arm

    —————

This error:
ANR0456W Session rejected for server DT – the server name at 192.168.1.99, 1500 does not match.

I removed the server:
REMOVE SERVER DT

    —————

These errors:
ANR1651E Server information for DT is not available.
ANR4377E Session failure, target server DT is not defined on the source server.
ANR3151E Configuration refresh failed with configuration manager DT.

I disabled replication config
REMOVE REPLNODE *
Q REPLSERVER
REMOVE REPLSERVER {GUID}
DEL SUBSCRIPTION DEFAULT_PROFILE

    —————

These errors:
ANS1695E The certificate is not valid.
ANS1592E Failed to initialize SSL protocol.
ANS8023E Unable to establish session with server.
ANR3335W Unable to distribute certificate to for session .
ANR8599W The connection with 192.168.1.2:40250 failed due to an untrusted server certificate. An attempt to reconnect and establish certificate trust might follow.

From the clients, I had to remove /opt/tivoli/tsm/client/ba/bin/dsmcert.* and C:\Program Files\Tivoli\TSM\baclient\dsmcert.* on the clients per http://andrewjtobiason.com/index.php/2018/08/16/resolving-ssl-errors/

However, I also had to fix dsmcert / dsmcert.exe which I clobbered in the process.

    —————

And on the server, allow keys to be swapped again:[LINK]
UPD NODE * SESSIONSECURITY=TRANSITIONAL
UPD ADMIN * SESSIONSECURITY=TRANSITIONAL

Swap keys on client:
dsmadmc

    —————

NOTE: I also removed /etc/adsm/* during troubleshooting, but that was not needed. That just lead to me having to re-enter passwords again. Simply deleting the cert database corrected the problem on other clients.

    —————

I tried to order this in dependency order. I was sort of all over the place when I did it, and might have missed something. I just could not exactly get all of the right info from any one documentation source.


AIX 7.2.3.1 breaks GSKit 8.0.50.89

AIX 7.2.3 breaks GSKit8, up through GP29 (8.0.50.89).

This affects TSP/Spectrum Protect, Content Manager, Tivoli Directory Server, Websphere, DB2, Informix, IBM HTTP Server, etc.

Before reboot, everything works still, which implies the change is in the kernel.

We found it on TSM, and AIX 7200-03-01-1838, and Spectrum Protect server 8.1.6.0.

Application crash and DBX follow below.

ANR7800I DSMSERV generated at 12:17:13 on Sep 11 2018.
IBM Spectrum Protect for AIX
Version 8, Release 1, Level 6.000
Licensed Materials - Property of IBM
(C) Copyright IBM Corporation 1990, 2018.
All rights reserved.
U.S. Government Users Restricted Rights - Use, duplication or disclosure
restricted by GSA ADP Schedule Contract with IBM Corporation.

ANR7801I Subsystem process ID is 10944920.
ANR0900I Processing options file /home/tsminst1/dsmserv.opt.
ANR7811I Using instance directory /home/tsminst1.
Illegal instruction(coredump)

# dbx /opt/tivoli/tsm/server/bin/dsmserv core.10944896.28165312
Type 'help' for help.
[using memory image in core.10944896.28165312]
reading symbolic information ...warning: no source compiled with -g

Illegal instruction (illegal opcode) in . at 0x0 ($t1)
warning: Unable to access address 0x0 from core

(dbx) where
.() at 0x0
gsk_src_create__FPPvPv(??, ??) at 0x9000000015b6d88
__ct__8GSKMutexFv(??) at 0x9000000018d664c
__ct__20GSKPasswordEncryptorFv(??) at 0x9000000018cb248
__ct__7gsk_envFv(??) at 0x900000000aaa6b0
GskEnvironmentOpen__FPPvb(??, ??) at 0x900000000ab14c4
gsk_environment_open(??) at 0x900000000ab277c
IPRA.$CheckGSKVersion() at 0x100eecf68
tlsInit() at 0x100eecd70
main(??, ??) at 0x10000112c

(dbx) th
thread state-k wchan state-u k-tid mode held scope function

$t1 run running 41877977 k no sys
$t2 run blocked 21234465 u no sys _cond_wait_global
$t3 run running 24380103 u no sys waitpid


dsmserv fails to start if LDAP is inaccessible

IBM, and the white books, say this is working as designed.
• If LDAP dies, dsmserv stays up without it.
• If LDAP dies, and dsmserv restarts, it refuses to come up.
• ANR3103E https://www.ibm.com/support/knowledgecenter/SSEQVQ_8.1.5/srv.msgs/b_msgs_server.pdf
• Workaround is remove LDAPURL from dsmserv.opt, or wait for LDAP to become accessible.

On a multi-homed server, any links serving LDAP should be fault tolerant.

Any server using LDAP should have fault tolerant LDAP servers.

Here’s where to vote on getting the start-up limitation changed.
http://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=121985


Spectrum Protect / TSM systemd autostart


cat < <'EOF' >/etc/systemd/system/db2fmcd.service
[Unit]
Description=DB2V111

[Service]
ExecStart=/opt/tivoli/tsm/db2/bin/db2fmcd
Restart=always
KillMode=process
KillSignal=SIGHUP

[Install]
WantedBy=default.target
EOF
systemctl enable db2fmcd.service
systemctl start db2fmcd.service

cp -p /opt/tivoli/tsm/server/bin/dsmserv.rc /etc/init.d/tsminst1
cat < <'EOF' >>/etc/systemd/system/tsminst1.service
[Unit]
Description=tsminst1
Requires=db2fmcd.service

[Service]
Type=forking
ExecStart=/etc/init.d/tsminst1 start
ExecReload=/etc/init.d/tsminst1 reload
ExecStop=/etc/init.d/tsminst1 stop
StandardOutput=journal

[Install]
WantedBy=multi-user.target
EOF
systemctl enable tsminst1.service
systemctl start tsminst1.service

ln -s /opt/tivoli/tsm/client/ba/bin/rc.dsmcad /etc/init.d/dsmcad
cat < <'EOF' >>/etc/systemd/system/dsmcad.service
[Unit]
Description=dsmcad

[Service]
Type=forking
ExecStart=/etc/init.d/dsmcad start
ExecReload=/etc/init.d/dsmcad reload
ExecStop=/etc/init.d/dsmcad stop
StandardOutput=journal

[Install]
WantedBy=multi-user.target
EOF
systemctl enable dsmcad.service
systemctl start dsmcad.service


Spectrum Protect – container vulnerability

We ran into an issue where a level-zero operator became root, and cleaned up some TSM dedupe-pool containers so he’d stop getting full filesystem alerts.

Things exposed:

How does someone that green get full, unmonitored root access?
* They told false information about timestaps during defense
* Their senior tech lead was content to advise they not move or delete files without contacting the app owner.
* Imagine if this had been a customer facing database server!

In ISP/TSM, once extents are marked damaged, a new backup of that extent will replace it.
* Good TDP4VT CTL files and other incrementals will send missing files.
* TDP for VMWare full backups fail if the control file backup is damaged.
* Damaged extents do not mark files as damaged or missing.

Replicate Node will back-propagate damaged files.
* Damaged extents do not mark files as damaged or missing.

Also, in case you missed that:
* Damaged extents do not mark files as damaged or missing.

For real, IBM says:
* Damaged extents do not mark files as damaged or missing.
* “That might cause a whole bunch of duplicates to be ingested and processed.”

IBM’s option is to use REPAIR STGPOOL.
* Requires a prior PROTECT STGPOOL (similar to BACKUP STGPOOL and RESTORE STGPOOL).
* PROTECT STGPOOL can go to a container copy on tape, a container copy on FILE, or a container primary on the replica target server.
* PROTECT STGPOOL cannot go to a cloud pool
* STGRULE TIERING only processes files, not PROTECT extents.
* PROTECT STGPOOL cannot go to a cloud pool that way either.
* There is NO WAY to use cloud storage pool to protect a container pool from damage.

EXCEPTION: Damaged extents can be replaced by REPLICATE NODE into a pool.
* You can DISABLE SES, and reverse the replication config.
* Replicate node that way will perform a FULL READ of the source pool.

There is a Request For Enhancement from November, 2017 for TYPE=CLOUD POOLTYPE=COPY.
* That would be a major code effort, but would solve this major hole.
* That has not gotten a blink from product engineering.
* Not even an “under review”, nor “No Way”, nor “maybe sometime”.

Alternatives for PROTECT into CLOUD might be:
* Don’t use cloud. Double the amount of local disk space, and replicate to another datacenter.
* Use NFS (We would need to build a beefy VM, and configure KRB5 at both ends, so we could do NFSv4 encrypted).
* Use CIFS (the host is on AIX, which does not support CIFS v3. Linux conversion up front before we had bulk data was given a big NO.)
* Use azfusefs (Again, it’s not Linux)

Anyway, maybe in 2019 this can be resolved, but this is the sort of thing that really REALLY was poorly documented, and did not get the time and resources to be tested in advance. This is the sort of thing that angers everyone at every level.

REFERENCE: hard,intr,nfsvers=4,tcp,rsize=1048576,wsize=1048576,bg,noatime


ANR3114E LDAP error 81. Failure to connect to the LDAP server

This used to be on IBM’s website, but it disappeared.  It is referenced all over the net, and needed to still exist. I only found it in the wayback machine, so I’m adding another copy to the internet.

2013 SOURCE: www-01.ibm.com/support/docview.wss?uid=swg21656339

Problem(Abstract)

When the SET LDAPUSER command is used, the connection can fail with:

ANR3114E LDAP error 81 (Can’t contact LDAP server)

Cause

The user common name (CN) in the SET LDAPUSER command contains a space or the ldapurl option is incorrectly specified.

Diagnosing the problem

Collect a trace of the Tivoli Storage Manager Server using the following trace classes:
session verbdetail ldap ldapcache unicode

More information about tracing the server can be found here: Enabling a trace for the server or storage agent

The following errors are reported within the trace:

11:02:04.127 [44][output.c][7531][PutConsoleMsg]:ANR2017I Administrator ADMIN issued command: SET LDAPPASSWORD ?***? ~
11:02:04.171 [44][ldapintr.c][548][ldapInit]:Entry: ldapUserNew =      CN=tsm user,OU=TSM,DC=ds,DC=example,DC=com
11:02:04.173 [44][ldapintr.c][5851][LdapHandleErrorEx]:Entry: LdapOpenSession(ldapintr.c:2340) ldapFunc = ldap_start_tls_s_np, ldapRc = 81, ld = 0000000001B0CAB0
11:02:04.174 [44][ldapintr.c][5867][LdapHandleErrorEx]:ldap_start_tls_s_np returned LDAP code 81(Can't contact LDAP server), LDAP Server message ((null)), and possible GSKIT SSL/TLS error 0(Success)
11:02:04.174 [44][output.c][7531][PutConsoleMsg]:ANR3114E LDAP error 81 (Can't contact LDAP server) occurred during ldap_start_tls_s_np.~
11:02:04.174 [44][ldapintr.c][6079][LdapHandleErrorEx]:Exit: rc = 2339, LdapOpenSession(ldapintr.c:2340), ldapFunc = ldap_start_tls_s_np, ldapRc = 81, ld = 0000000001B0CAB0
11:02:04.174 [44][ldapintr.c][1580][ldapCloseSession]:Entry: sessP = 0000000009B99CD0
11:02:04.175 [44][ldapintr.c][3159][LdapFreeSess]:Entry: sessP = 0000000009B99CD0
11:02:04.175 [44][ldapintr.c][2449][LdapOpenSession]:Exit: rc = 2339, ldapHandleP = 000000000AFDE740, bindDn =                              (CN=tsm user,OU=TSM,DC=ds,DC=example,DC=com)
11:02:04.175 [44][output.c][7531][PutConsoleMsg]:ANR3103E Failure occurred while initializing LDAP directory services.~
11:02:04.175 [44][ldapintr.c][856][ldapInit]:Exit: rc = 2339
11:02:04.175 [44][output.c][7531][PutConsoleMsg]:ANR2732E Unable to communicate with the external LDAP directory server.~

Resolving the problem

  • In the trace provided, the common name (CN) contains a space. (CN=tsm user,OU=TSM,DC=ds,DC=example,DC=com)

    Remove the space in the common name when using the SET LDAPUSER command. For example:

    SET LDAPUSER “CN=tsmuser,OU=TSM,DC=ds,DC=example,DC=com”

  • Use an LDAP connection utility such as ldp.exe to ensure the ldapurl option is correct and the LDAP server is accepting connections

    <ldapurl> port 636, check the box for SSL

    Verify there are no errors in the output


tsm server status

I ordered the new backup server on October 27.
Initial setup gave app crashes intermittently, so was not ready to make it live yet.
I ran BOINC on it for a day, and at one point, all tasks died at once.

Syslog showed EDAC errors starting 11 days after I got the system, calling out CPU#1Channel#2_DIMM#0

This matches CPU1, DIMM1 on the board (ie, DIMMs are ordered backwards in Linux from printed labels).

I swapped all of CPU1 DIMMS with CPU0 DIMMs to troubleshoot.

Problem went away. 99% chance this was just a slightly loose DIMM from shipping.

Aside from that, the system has been awesome. I’ve run DB2, Spectrum Protect, and BOINC on here. For BOINC, the fans stay on low at 66% and 50% on a warm day, and 66%/66% on a cool day.

TLDR – remember to re-seat your DIMMs after shipping. System is stable otherwise.

Here are logs and system queries:

Nov 7 15:00:43 tsm kernel: [929582.997825] EDAC MC1: 1 CE error on CPU#1Channel#2_DIMM#0 (channel:2 slot:0 page:0x0 offset:0x0 grain:8 syndrome:0x0)
...
Nov 14 19:59:05 tsm kernel: [1552272.728748] EDAC MC1: 7112 CE error on CPU#1Channel#2_DIMM#0 (channel:2 slot:0 page:0x0 offset:0x0 grain:8 syndrome:0x0)

/bin/bash# ll -d /sys/devices/system/edac/mc/mc1/dimm*
drwxr-xr-x 3 root root 0 Nov 14 20:07 /sys/devices/system/edac/mc/mc1/dimm0/
drwxr-xr-x 3 root root 0 Nov 14 20:07 /sys/devices/system/edac/mc/mc1/dimm3/
drwxr-xr-x 3 root root 0 Nov 14 20:07 /sys/devices/system/edac/mc/mc1/dimm6/

/bin/bash# cat /sys/devices/system/edac/mc/mc1/dimm6/dimm_label
CPU#1Channel#2_DIMM#0

/bin/bash# cat /sys/devices/system/edac/mc/mc1/dimm6/dimm_location
channel 2 slot 0

/bin/bash# cat /sys/devices/system/edac/mc/mc1/dimm6/dimm_mem_type
Registered-DDR3

/bin/bash# cat /sys/devices/system/edac/mc/mc1/dimm6/size
8192

/bin/bash# cat /sys/devices/system/edac/mc/mc1/mc_name
i7 core #1

/bin/bash# cat /sys/devices/system/edac/mc/mc1/ce_count
1197602807

/bin/bash# cat /sys/devices/system/edac/mc/mc0/mc_name
i7 core #0

/bin/bash# cat /sys/devices/system/edac/mc/mc0/ce_count
0

/bin/bash# uptime
20:15:26 up 17 days, 23:28, 2 users, load average: 0.01, 0.40, 2.64

Power off and back on, and now BIOS shows:

209-Memory warning condition (WARN_DQS_TEST) detected slot CPU1 DIMM1
209-Memory warning condition (WARN_DQS_TEST) detected slot CPU1 DIMM1
209-Memory warning condition (rd dq dqs) detected slot CPU1 DIMM1
203-Memory module failed self-test and failing rank was disabled slot CPU1 DIMM1

The following configuration options were automatically updated:
Memory:40960 MB

Using ESD precautions, I moved all DIMMs from CPU1 bank to CPU0 bank.
All errors went away.

Loose DIMM. False alarm.


Protect initial install

This is happiness…

tsminst1@tsm:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.3 LTS
Release: 16.04
Codename: xenial

/bin/bash# for i in /dev/sd? ; do smartctl -a $i ; done | grep ‘Device Model’
Device Model: Samsung SSD 850 EVO 250GB
Device Model: WDC WD30EFRX-68EUZN0
Device Model: Samsung SSD 850 EVO 250GB
Device Model: WDC WD30EFRX-68EUZN0
Device Model: WDC WD30EFRX-68EUZN0

tsminst1@tsm:~$ dsmserv format dbdir=/tsm/db01,/tsm/db02,/tsm/db03,/tsm/db04,/tsm/db05,/tsm/db06,/tsm/db07,/tsm/db08 \
> activelogsize=8192 activelogdirectory=/tsm/log archlogdirectory=/tsm/logarch

ANR7800I DSMSERV generated at 11:32:48 on Sep 19 2017.

IBM Spectrum Protect for Linux/x86_64
Version 8, Release 1, Level 3.000

Licensed Materials – Property of IBM

(C) Copyright IBM Corporation 1990, 2017.
All rights reserved.
U.S. Government Users Restricted Rights – Use, duplication or disclosure
restricted by GSA ADP Schedule Contract with IBM Corporation.

ANR7801I Subsystem process ID is 29286.
ANR0900I Processing options file /home/tsminst1/dsmserv.opt.
ANR0010W Unable to open message catalog for language en_US.UTF-8. The default language message catalog will be used.
ANR7814I Using instance directory /home/tsminst1.
ANR3339I Default Label in key data base is TSM Server SelfSigned SHA Key.
ANR4726I The ICC support module has been loaded.
ANR0152I Database manager successfully started.
ANR2976I Offline DB backup for database TSMDB1 started.
ANR2974I Offline DB backup for database TSMDB1 completed successfully.
ANR0992I Server’s database formatting complete.
ANR0369I Stopping the database manager because of a server shutdown.


New data protection

Upgrading TSM server from Q9650 Core 2 Quad 3.0GHz, 8GB DDR2 on Win 2008R2.

New system is HP Z600, two-socket, 6-core 2.66GHz Xeon X5650 and 48GB of RAM. Wattage is the same per socket, but two sockets now. 3x the cores, 4x the performance.

SSDs for DB and Log are also moving to EVO 850 from Corsair M100. I’ll set up a container pool to replace the dedupe file class, and put that on 3x 3TB RAID5 instead of 2x RAID1.

OS will be Ubuntu 16.04.2 LTS. I’d like to just use Debian 9.1, but Debian and long-term-support seem to not be synonymous. I’d hate to run a patch update and have everything break, then fight with debian testing repo to try to get it all back to normal. Plus, I have no Ubuntu boxes, only Debian. It’ll give me a chance to see what operational differences I run into.

Old TSM is 6.4. New will be “Spectrum Protect” 8.1.3. Yes, the billions spent to rebrand to the same name as Charter Cable’s rebrand really seems like money well spent.

Anyway, Since I lost the offsite replication provider for the dedupe file pool, and it was having trouble keeping up anyway, this will let me change to server-side encryption, and object storage. We’ll see which provider wins out on price once everything is rededuped properly.

If the fan noise is not too bad, maybe this platform can be considered for a low-cost upgrade to the kids’ game machines. Though, these are heavy, with 2 big handles on the top.

Also, really, something new enough to have USB3 on the motherboard is probably better. I have some laptops picked out, but that’s re-buying every component, including ones that are presently decent. *sigh*


IBM Download Director is a beast

I’m sure this will all change in a week, but until then, here is reference for how to uninstall download director, or forcibly reinstall it.

There was no support, and no google help, no IBM search help, etc. ​After all the usual things, I went to a system without an existing DD installation.

​You can force-reinstall Download Director from here:
https://www-03.ibm.com/isc/esd/dswdown/dldirector/installation_en.html

​You can manually run DD here, but I don’t know how to feed it packages:
https://www14.software.ibm.com/dldirector/IBMDownloadDirectorApp.jnlp

​There is info on how to uninstall DD here:
​https://www-03.ibm.com/isc/esd/dswdown/dldirector/uninstall_en.html

​I’m sure these URLs will change in the next forced web redesign, but for now, this should help for people with broken DD installs.

Reinstall info is obscured in convoluted JavaScript, but here’s the uninstall information:

Windows
How to uninstall

  • Open a new cmd window, paste the following command and hit enter:
  • reg DELETE HKCU\Software\Classes\ibmddp /f && rmdir %HOMEPATH%\AppData\Local\IBM\DD /S /Q
  • You should see a “The operation completed successfully.” message.

How to verify if Download Director is installed

  • Open a new cmd window, paste the following command and hit enter:
  • (reg query HKCU\Software\Classes\ibmddp 1> NUL 2>&1 && IF EXIST %HOMEPATH%\AppData\Local\IBM\DD\DownloadDirectorLauncher.exe (echo DD Installed) else (echo DD not installed)) || echo DD not installed
  • You should see either “DD installed” or “DD not installed”.

Linux
How to uninstall

  • Open a new terminal window, paste the following command and hit enter:
  • xdg-mime uninstall ~/.local/share/applications/ibm-downloaddirector.desktop && rm -rf ~/.local/share/applications/ibm-downloaddirector.desktop ~/.config/download-director/
  • If no errors are displayed, the operation completed successfully.

How to verify if Download Director is installed

  • Open a new terminal window, paste the following command and hit enter:
  • [[ -f ~/.local/share/applications/ibm-downloaddirector.desktop || -f ~/.config/download-director/DownloadDirectorLauncher.sh ]] && echo "DD installed" || echo "DD not installed"
  • You should see either “DD installed” or “DD not installed”.

Mac
How to uninstall

  • Open the “Terminal” app, paste the following command and hit enter:
  • rm -rf ~/Applications/DownloadDirectorLauncher.app/
  • If no errors are displayed, the operation completed successfully.

How to verify if Download Director is installed

  • Open the “Terminal” app, paste the following command and hit enter:
  • [[ -d ~/Applications/DownloadDirectorLauncher.app/ ]] && echo "DD installed" || echo "DD not installed"
  • You should see either “DD installed” or “DD not installed”.

Why I wrote this up:
I find myself stuck with IBM due to the value of legacy skills vs transitioning to newer skills.
Periodically, IBM makes changes to their webpage, or code download system.
Often, these leave things inconsistent (claims that HTTP can be used, but it’s no longer available).
Worse, forced tools will stop working, and the IBM solution is to wipe your entire browser config and start over.

IBM has decided it’s better to force people to use Download Director instead of any standard protocol.
IBM’s mantra is “It worked for me in the lab, so if it doesn’t work for you, tough patooties.”
There is no escalation to people who make decisions. This has been an ongoing issue for a decade.
No one cares, except a few of the ubertechs supporting things, but they have no sway.

I’ve been using HTTP for a while, but they pulled that, so I had to use DD.
This time, DD gave me an error that JavaWS could not be started.
So I uninstalled all Java, reinstalled the newest, and DD said I had no Java installed.

There were no google hits to help, no IBM pages to help, and IBM search is useless as always.
Of the pages I found, none of them had contact forms, because that costs money.
There is no uninstall tool for Download Director.
There is no Browser Extension, no OS uninstall tool.
Removing the AppData folder does not help.

I went to a clean system, and wrote down all that I could find during a new code download attempt.
There is actually a webpage for this, but it is not indexed anywhere. That’s linked above.
That’s what this post is about.

Note that this is not acceptable in any way, and is one of the many reasons people are leaving IBM for open standards.
It’s not about “The Cloud”. It’s about IBM having so many layers between the decision-makers and the workers that they are out of touch. They have no idea how to be a tech business anymore, and are run by people who are content to gut the reputation of IBM so as to report a short-term improvement in gross profit. Zero interest in the long term.