OmniTech Industries

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09/22/2022

Originally, this was an API widget for crossposting from other blogs. Maybe I’ll post tech info here. For now, it’s still pretty idle.

03/06/2017

So, this is mainly just to sync my tech posts from WordPress. However, FB really is not designed for retrospective / reference. It is all about ephemeral marketing. Also, better WP plugins have occurred since this was set up. Either way, livejournal posts show up in Google, and FB posts are hard to find.

PROBLEM: On some migrates, we found the rpdomain would not stay running on one node. The cluster was up, and SEEMED to o...
11/24/2015

PROBLEM: On some migrates, we found the rpdomain would not stay running on one node. The cluster was up, and SEEMED to operate normally, but errpt got CONFIGRM stop/start messages every minute. lsrpdomain would show Offline, or "Pending online". lsrpnode would show: 2610-412 A Resource Manager terminated while attempting to enumerate resources for this command. 2610-408 Resource selection could not be performed. [ 763 more words. ]

http://omnitech.net/reference/2015/11/24/cl_rsh-fails/

PROBLEM: On some migrates, we found the rpdomain would not stay running on one node. The cluster was up, and SEEMED to operate normally, but errpt got CONFIGRM stop/start messages every minute. ls

Hitachi disks, clmigcheck always says there are no matching disks. This may be due to spaces in udid, or other problems ...
11/24/2015

Hitachi disks, clmigcheck always says there are no matching disks. This may be due to spaces in udid, or other problems with the awk line in list_common_free_disks The easiest fix is to A) Verify you have absolutely picked the right disk. Set a PVID and remove/readd it to make sure. B) comment out the "mv" line for the RESULT files.

http://omnitech.net/reference/2015/11/24/clmigcheck-bypass-hitachi/

Hitachi disks, clmigcheck always says there are no matching disks. This may be due to spaces in udid, or other problems with the awk line in list_common_free_disks The easiest fix is to A) Verify y

0516-1980 /usr/sbin/extendvg: Block size of all disks in the volume group must be the same. Cannot mix disks with differ...
11/19/2015

0516-1980 /usr/sbin/extendvg: Block size of all disks in the volume group must be the same. Cannot mix disks with different block sizes. SAN LUNs are 512b LBA. Internal disks are whatever are presented. AIX wants 512b, and iSeries wants 528. AIX requires SSDs to be presented through a RAID controller, as a RAID device. This can be a single disk RAID0, but it has to be pdisk to hdisk conversion. [ 38 more words. ]

http://omnitech.net/reference/2015/11/19/aix-4k-sectors/

0516-1980 /usr/sbin/extendvg: Block size of all disks in the volume group must be the same. Cannot mix disks with different block sizes. SAN LUNs are 512b LBA. Internal disks are whatever are pres

I just saved a few gigs with this. Figured I need to document this or I'll never remember. :) Add this into /etc/dovecot...
11/15/2015

I just saved a few gigs with this. Figured I need to document this or I'll never remember. :) Add this into /etc/dovecot/conf.d/10* # Enable zlib plugin globally for reading/writing: mail_plugins = $mail_plugins zlib # Enable these only if you want compression while saving: plugin { zlib_save_level = 6 # 1..9; default is 6 zlib_save = gz # or bz2, xz or lz4… [ 207 more words. ]

http://omnitech.net/news/2015/11/14/compressed-dovecot-maildir-on-debian/

I just saved a few gigs with this. Figured I need to document this or I'll never remember. :) Add this into /etc/dovecot/conf.d/10* # Enable zlib plugin globally for reading/writing: mail_plugi

To be updated with resolution at some point. This is the second time a secondary VIO server has hung with a UIO_WRITE in...
10/19/2015

To be updated with resolution at some point. This is the second time a secondary VIO server has hung with a UIO_WRITE in the kernel log The VIO servers have only been up 55 days. Number R12 hung about a week and a half ago, but no dump was collected. Number R22 hung this morning, and a dump was collected. [ 2584 more words. ]

http://omnitech.net/reference/2015/10/19/vio-server-hangs/

To be updated with resolution at some point. This is the second time a secondary VIO server has hung with a UIO_WRITE in the kernel log The VIO servers have only been up 55 days. Number R12 hung ab

Marek Wołynko has discontinued and removed the wmarow iops calculator.  Archive.org still has this.  Just to be safe, I ...
10/14/2015

Marek Wołynko has discontinued and removed the wmarow iops calculator. Archive.org still has this. Just to be safe, I downloaded that and saved it for my own use: http://omnitech.net/iops/

REF: http://omnitech.net/reference/2015/10/14/wmarows-iops-calculator/

Marek Wołynko has discontinued the wmarow iops calculator, and pulled down the page. I use this all the time, though I normally search on "wmarrow iops", but whatever. Anyway, archive.org still

10/12/2015

I generally find it's easier to be attached to a company as a W-2 employee, instead of trying to find customers and deal with accounting.

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