Re: Optimize RAID0 for max IOPS?

Dear Stan Hoeppner,

In message [ref] you wrote:

quoted

# lvcreate -L 32G -n test castor0
  Logical volume "test" created
# mkfs.xfs /dev/mapper/castor0-test

Is this on that set of 4 low end Maxtor disks?  Is the above LV sitting atop
RAID 0, RAID 5, or concatenation?

No, this is the other system, using 6 x Seagate ST31000524NS on a
Marvell MV88SX6081 8-port SATA II PCI-X Controller.

LVM is sitting on top of a RAID6 here:

md2 : active raid6 sda[0] sdi[5] sdh[4] sde[3] sdd[2] sdb[1]
      3907049792 blocks super 1.2 level 6, 16k chunk, algorithm 2 [6/6] [UUUUUU]

Try adding some concurrency, say 8, to bonnie++ and retest both XFS and ext4.

OK, will do.

Best regards,

Wolfgang Denk

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