Ming Zhang wrote:
is there any technical issue that lead not to be implemented?
No. In fact, it has been implemented. Both Peter T. Breuer and I have come up with slightly different patches to implement the write only functionality.
is there any place to find previous discussion on this? i try the google but fail. i do no know which key word can find that. thx.
Try the archives of this mailing list:
http://marc.theaimsgroup.com/?l=linux-raid&r=1&w=2
This has been discussed a couple of times and patches have been posted to the list in the past.
-- Paul
On Thursday November 4, mingz@xxxxxxxxxxx wrote:
Hi, folks?
I would like to know if current RAID1 support or willing to support a RAID1 with a write only device? For example, u can setup 2 disks to
form
a raid1, you fork 2 writes to both disks while you only read from one. this will be very useful for logging purpose or replication.
This functionality has been discussed, but have not been implemented in a released kernel yet.
NeilBrown
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