On 2/7/2011 1:07 PM, Roberto Spadim wrote:
hi guys, could md send TRIM command to ssd? using ext4 discart mount option?
if i mix ssd and hd, could this TRIM be rewrite to non TRIM compatible disks?
I have read that using md with SSDs is not a great idea:
Form the Fedora 14 documentation:
"Take note as well that software RAID levels 1, 4, 5, and 6 are not
recommended for use on SSDs.
During the initialization stage of these RAID levels, some RAID
management utilities (such as mdadm)
write to all of the blocks on the storage device to ensure that
checksums operate properly.
This will cause the performance of the SSD to degrade quickly. "
https://docs.fedoraproject.org/en-US/Fedora/14/html/Storage_Administration_Guide/newmds-ssdtuning.html
--
Cheers,
Maurice Hilarius
eMail: /mhilarius@xxxxxxxxx/
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