On Sep 25, 2008, at 2:19 AM, "Kaspar Schleiser" <kaspar@xxxxxxxxxxxx>
wrote:
Hello everybody!
This is my first post on the list, let me know if I'm not following
any
rules.
What do you think about adding priorities for raid1 arrays?
For example, always use /dev/ram0 (ramdisk) for reading/writing, but
nonetheless write everything additionally on /dev/sda1. Restore to
/dev/ram0 after mount if it is empty.
Or use /dev/sd[c-h], maybe a raid 0 of fast read access/slow random
write
flash media for reading, but /dev/sda1 (a reasonably fast HD) for
writing.
make sure written data get's replicated on the raid0.
The linux md driver supports that in some way using the --write-
mostly and
--write-behind options, but that's not very flexible.
Cheers
Kaspar Schleiser
Sounds roughly like a project posted to LKML not that long ago by
Daniel Phillips. Google "LKML Daniel Phillips ramback".
Sent from my iPhone
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