no, I did
lctl device_list
which lists all the devices and their number (I originally mis-
interpreted the number)... then I did
lctl --device 7 deactivate
lctl --device 8 deactivate
lclt --device 9 deactivate
which deactiviated the nodes. My
I inquired about this a while back and got the following:
In order to minimize downtime, it would also be possible to use the ext2
dump program in order to do device-level backups (including the
extended attributes) while the filesystem is in use. This backup would
not be 100% coherent with the
Yes, I had seen the issue of extended attributes and that doesn't
worry me that much. It won't be much information for the last copy
of data.
I guess my query comes down to how safe it is to mount the raw lustre
partition ro while it is still being served... and then to copy data
off
I don't think you can ro mount the fs while it's in use, hence the suggestion
of the e2fs dump.
Stephen
- Stuart Midgley [EMAIL PROTECTED] wrote:
Yes, I had seen the issue of extended attributes and that doesn't
worry me that much. It won't be much information for the last copy
of
the ost, the final dump/restore should go fairly quickly
Evan
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Stuart Midgley
Sent: Tuesday, June 05, 2007 5:02 PM
To: lustre
Subject: [Lustre-discuss] failing hardware in ost
Morning
We have
on the mds:
lctl --device N deactivate
Stuart Midgley wrote:
Yes and no. A lot of the data is scratch, so within a month or so, I
could delete most of it and copy the rest off but I wanted to move
faster than that :)
Deactivating the ost would be preferable anyway, it would mean my
This does not appear to be working. The command executes fine...
I run a test script which creates a 100 files in quick succession and then
run lfs get_stripe dir to see which ost they are on... and they are
still going to the ones I've deactiviated.
Stu.
on the mds:
lctl --device N
ok, my mistake, I was putting the obd number not the device number. I
now have it corrected and files are no longer being created on the
ost.
Thanks
Stu.
On 6/7/07, Stuart Midgley [EMAIL PROTECTED] wrote:
This does not appear to be working. The command executes fine...
I run a test script
Morning
We have some failing hardware in an oss (md raid5 over 6 x 750GB sata
disks) and I would like to migrate all the data off to a new oss.
This looks relatively straight forward enough, but can you do it semi-
live?
What I want to do is mount the lustre partition read only while it
