Author Archive
AMS/HUS Volume migration
Sometime, due to a number of different reasons, there might be a need to perform an undisruptive LUN migration from one DP pool to another. Thankfully it’s trivially easy to do with AMS/HUS Hitachi’s storage arrays: First, enable Volume Migration if this option is still off: auopt -unit array_name -option VOL-MIGRATION -st enable Create a […]
Macbook pro and three consecutive led flashes
Just in case if you have Macbook Pro, mine is 15″ from 2008, and one day it stops working or shuts itself down shortly after you’ve logged into the system, don’t panic and don’t run into the closest Apple store to buy a new one. There is probably a solution. There are other symptoms of […]
OpenIndiana
Finally, OpenIndiana has found its place in my VirtualBox environment. Very hope, that I would have enough time to play with it. Anyway, it’s nice to have it as a Solaris reference.
Is technical support worth its money? Not so sure.
I can’t stop wondering why the absolute majority of all support requests I or my colleagues have dealt with in the past were treated, let’s say, in a strange way. The vendor would fight, yes fight, very hard in attempt to defend itself and redirect the blame on the customer or another vendor if that […]
Work hard and it would pay off.
Surprisingly, how a long and productive day could turn all upside down and make me fill contended and refreshed even when the previous day brought a body of disappointment.
How to quickly fix osad failure to connect to the SpaceWalk server
If one day you noticed that you spacewalk client had started to spit at you with the following errors – just know that it’s very easy to fix. 2012/03/15 17:17:43 +04:00 29835 0.0.0.0: osad/jabber_lib.setup_connection(‘Connected to jabber server’, ‘spacewalk-server-name’) 2012/03/15 17:17:43 +04:00 29835 0.0.0.0: osad/jabber_lib.register(‘ERROR’, ‘Invalid password’) Stop spacewalk rhn-satellite stop rm -f /var/lib/jabberd/db/* Connect to […]
Even after 30 you could be a good student
A week ago I received a Statement of Accomplishment of Cryptography course that proves that there is always a chance for a challenge and to learn something new. Don’t give up, strive to broad your vision and extend your personal knowledge base. Pluck and join the class of your choice at www.coursera.org
NFSD panics on RHEL 5.8
If you as unlucky as I am and your RHEL 5.8 server has just spat the same call trace as you see on the picture I attached, then I’m here to make your problem less painful. If you have RHN account you could find a thorough explanation and the root case here and here If […]
Just boring
The title says it all. Nothing is happening at all and I feel stuck in the dead calm. Below are the most noticeable events that have taken part recently: The first part of Crypto class is over with the next portion expected to be offered somewhere during the autumn. Finally switched from iPhone to Google […]
How to remove the last dead path in ESX
Feb 9 10:56:27 esx vmkernel: 47:18:55:03.308 cpu8:4225)WARNING: NMP: nmp_DeviceRetryCommand: Device “naa.60060e80056e030000006e030000004b”: awaiting fast path state update for failover with I/O blocked. No prior reservation exists on the device. Feb 9 10:56:27 esx vmkernel: 47:18:55:03.308 cpu8:4225)WARNING: NMP: nmp_DeviceStartLoop: NMP Device “naa.60060e80056e030000006e030000004b” is blocked. Not starting I/O from device. Feb 9 10:56:28 esx vmkernel: 47:18:55:04.323 cpu8:4264)WARNING: NMP: […]