Difference: HundredGigabitTestingLog (12 vs. 13)

Revision 132011-11-15 - crlb

Line: 1 to 1
META TOPICPARENT name="HundredGigabit"
Line: 21 to 21
 Testing of MegaCLI -PDClear:

  • Test nodes consisted of scdemo06 and scdemo07. In all tests, scdemo06 was used as the client FDT node pushing 89 x 11gigabyte atlas root files contained on the /ssd filesystem to the /ssd filesystem on scdemo07 which was running the FDT server. Both client and server were running under non-priviled accounts, the scheduling algorithm was set to "noop", and the /ssd filesystems on both systems were hosted by XFS filesystems on hardware RAID0 of six OCZ Deneva2 drive, stripe size of 1MB, and write through cache.
  • The script /opt/versions/scdemo/bin/mrPDClearStart will reset/clear all the drives in bays 2 through 7. The script contains the following:
   set -e
   umount /ssd
   /opt/MegaRAID/MegaCli/MegaCli64 -CfgLdDel -L1 -a0
   /opt/MegaRAID/MegaCli/MegaCli64 -PDClear -Start -PhysDrv[32:2,32:3,32:4,32:5,32:6,32:7] -a0
  • Afterward, you will need to redefine the RAID set, partition and recreate the filesystem.
  1. Last test prior to PDClear: Avg: 5.784 Gb/s after 100.00%.
  2. PDClear all drives on scdemo07. RAID0 redefined. XFS filesystem /ssd recreated and remounted.
This site is powered by the TWiki collaboration platform Powered by PerlCopyright © 2008-2019 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback