Sorry it took so long to reply, but I just did this last night. Thanks
to Vinzenz who suggested backing up to disk instead of tape.
I used Legato to restore full backups to SCSI disks. I then shutdown
and reconfigured the internal drives to raid 5. I booted from cdrom,
(boot from SCSI drive hung) I created partitions on the raidset for the
old filesystems and then I used the following command to restore all
savesets.
# cd /scsifileset ; tar -Ecf - . | (cd /original ; tar xfp -)
P. S. the first time I used:
cd /scsifileset ; tar -cf - . | (cd /original ; tar -xf -)
This did not get extended links, and permissions were not correct!
This restored the filesystems, I think. There appear to be missing
files. For one, all my Legato Single server client index stuff was
gone.
Legato messages:
no cycles found in media db; doing full save
save: File index error, file index is missing
Please contact your system administrator to recover or recreate then
index.
Looking at the filesystems with a df, it looks like a large percentage
of stuff is there. Anybody got ideas why some stuff did not recover.
The system appears to be ok. Any way to check for important stuff being
missing?
((((((Original question:)))))))
I have an alphaserver 1200 running du 4.0d no patches. This is a
recently installed system (3 - 4 weeks) not yet in production. The
system has four internal drives on a mylex controller.
I originally set the drives up as jbod. ( just a bunch of disks). This
gives me no failure protection. I would like to raid the drives.
Please check my logic on the following plan.
- back up all file systems to tape using vdump or tar or even legato
networker
# df
Filesystem 512-blocks Used Available Capacity Mounted
on
/dev/re0a 516318 142044 322642 31% /
/proc 0 0 0 100% /proc
/dev/re1c 8251356 2734328 4691892 37% /usr
domain1#xxxxxx 2117456 185248 1918368 9% /xxxxxx
domain2#yyy 6129824 4507798 1608480 74% /yyy
- shutdown and put the four drives in one big raid set
- reboot from the 4.0d cdrom
- disklabel and newfs the drive
- create a partition on the big drive for each filesystem
- restore from tape
I do not like the fact that if the controller goes I still lose
everything.
Scenario 2: There is a shelf of 5 4.0gb drives hanging off of a scsi
port on the back of this machine that are not being used. I could
purchase LSM or something and use that to mirror across the internal
shelf and this shelf.
Don't let this tragedy of logic go unchecked! Stop me now before I
really mess it up!!
Replies to smithmr_at_bowater.com would be much appreciated.
(P. S. brand unix new sys admin, go easy!)
Received on Fri Aug 13 1999 - 12:55:05 NZST