… transparent learn cycle NOTE: Virtual disks stays in Write Back mode, if enabled, during transparent learn cycle. When the TLC completes, the controller sets the next TLC to +90 days. TLC Time Frame The time frame for completion of a learn cycle is… charge currents used. For PERC H710 or H810 cards, the expected time frame for completion of a learn cycle is approximately seven…
Comment: Looking for RAID Controller without Battery Learning problems ?
April 26, 2013 By 11 Comments
Post: The perils of uniform hardware and RAID auto-learn cycles
November 16, 2010 By 16 Comments
… run through auto-learn cycles periodically, which is generally the factory default (these are Dells, with PERC / LSI MegaRAID controllers.) I opened my quick-reference text file and found the command we needed to disable auto-learn, (++text…
Comment: The perils of uniform hardware and RAID auto-learn cycles
November 16, 2010 By 16 Comments
We have a number of servers with the same PERC controllers. I’ve noticed they fail into WriteThrough mode when the …. I’m curious if you recommended the customer disable the learning cycle entirely, or schedule it to run off-peak. I…
Comment: RAID System performance surprises
March 5, 2008 By 7 Comments
… PERC I use OMSA which has Nagios plugins and it works pretty well. Here is the command which tells when next Learn cycle to be: [root@DB01 ~]# omreport storage battery controller=0 Battery 0 on Controller PERC 5/i Integrated (Embedded) Controller PERC 5/i… Applicable Predicted Capacity Status : Ready Learn State : Idle Next Learn Time : 4 days 4 hours Maximum Learn Delay : 7 days 0 hours The…
