On 30/03/2010 19:18, Greg Smith wrote:
The MegaRAID SAS 84* cards have worked extremely well for me in terms of performance and features for all the systems I've seen them installed in. I'd consider it a modest upgrade from that 3ware card, speed wise. The main issue with the MegaRAID cards is that you will have to write a lot of your own custom scripts to monitor for failures using their painful MegaCLI utility, and under FreeBSD that also requires using their Linux utility via emulation: http://www.freebsdsoftware.org/sysutils/linux-megacli.html
Getting MegaCLI to work was a slight PITA, but once it was running it's been just a matter of adding:
daily_status_mfi_raid_enable="YES" to /etc/periodic.conf to get the following data in the daily reports: Adpater: 0 ------------------------------------------------------------------------ Physical Drive Information: ENC SLO DEV SEQ MEC OEC PFC LPF STATE 1 0 0 2 0 0 0 0 Online 1 1 1 2 0 0 0 0 Online 1 2 2 2 0 0 0 0 Online 1 3 3 2 0 0 0 0 Online 1 4 4 2 0 0 0 0 Online 1 5 5 2 0 0 0 0 Online 1 255 248 0 0 0 0 0 Unconfigured(good) Virtual Drive Information: VD DRV RLP RLS RLQ STS SIZE STATE NAME 0 2 1 0 0 64kB 69472MB Optimal 1 2 1 3 0 64kB 138944MB Optimal BBU Information: TYPE TEMP OK RSOC ASOC RC CC ME iTBBU 29 C -1 94 93 816 109 2 Controller Logs: +++ /var/log/mfi_raid_0.today Sun Mar 28 03:07:36 2010 @@ -37797,3 +37797,25 @@ Event Description: Patrol Read complete Event Data: None + +======================================================================== +seqNum: 0x000036f6 +Time: Sat Mar 27 03:00:00 2010 + +Code: 0x00000027 +Class: 0 +Locale: 0x20 +Event Description: Patrol Read started +Event Data: + None etc... Cheers -- Matteo Beccati Development & Consulting - http://www.beccati.com/ -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
