Can´t open /dev/dsk/c1t0d0s0 Clone/mirror

UNIX Solaris
1

Hello friends,
I Working with Solaris 8 on a SunFireV890, 150 GB SCSI HD's in Raid 1 (mirroring), my problem is that the master disk failed and going to put the slave (mirror) as a Master in the slot 0 (SCSI) will not start.
The original mounting this, mirror in Raid 0:
c1t0d0s0 (master)
c1t1d0s0 (Slave)

Amount slave disk in slot 0 (SCSI) and modify the /etc/vfstab, reboot, and when the machine began to start, tell me..
Can not open / dev/dsk/c1t0d0s0.

I have reviewed the vfstab and its OK, if I do a format tells me that the disk is pinched as c1t1d0s0.
I did another test on another machine with a HD NO MIRROR, is to make a clone/copy with a ufsdump, a virgin HD.
C0t0d0s0 (HD Solaris8)
C0t1d0s0 (HD virgin)

It happens the same, complete clone/copy, dismount the amount and the C0t1 c0t0 instead. I boot the machine and I get the same problem
Can not open / dev/dsk/c0t0d0s0.

Where you change the boot path? What happen with the clone ?
The vfstab is correct / dev/dsk/c0t0d0s0

Thanks a lot !!

2

perhaps when master disk failed, slave also got corrupted. so maybe you should check the filesystem, unless its zfs.
btw, vfstab refers to c0 but the disk is on c1 ?

3

thank you for help me orange

I'm sure the slave drive is fine and I have a third copy that feels the same.
summarizing the problem:
the disc (slave c1t1d0s0) is fine but when connecting the SCSI slot 0 (c1t0d0s0) is recognized as scsi slot 1 (c1t1d0s0) and don�t start.

4

have you tried 'probe-scsi' from ok prompt?
you can choose which device boots with 'boot' command

5

hi gry..

did you run fsck F ufs /dev/rdsk/c1t0d0s0...

6

thanks guys, but none of the 2 solutions have helped me.

With the probe-scsi-all recognize the hard disk from the OBP (ok prompt) but on boot fails again.

With the fsck-F ... It's the same, it performs well but is still looking for the hard disk in slot 1 (c1t1d0s0) when is plugged in c1t0d0s0 and will not start.

Thanks a lot :wall:

7

i don' understand why you switched the disks? how did you build the mirror? are you sure it is a mirror? in your first post you said:

raid 0 is not a mirror! and a ufsdump of a disk is also not a raid... please be more specific about what you've done and which error messages you get. also have you tried to leave the disk in slot 1 and boot the system from there (ok boot your_2nd_disk)?

8

DukeNuke2 Thanks, I'm wrong, is not RAID 0, it�sRAID 1 (mirroring)
I'm sorry but my English is not very good, I try to explain better:

Original configuration-- 2 hard disks in RAID 1 (mirroring)
HD-1 scsi slot 0 c1t0d0s0
HD-2 scsi slot 1 c1t1d0s0

  • c1t0d0s0 master disk (HD-1) fails, take it off of scsi slot.

  • I Put c1t1d0s0 disk (HD-2) in slot 0 (modified vfstab/system and take off the mirror/submirror metadbs).

  • Check hardware probe-scsi-all and boot-r

  • Failure to boot Can not open / dev/dsk/c1t0d0s0

  • run FSCK -Y /dev/dsk/c1t0d0s0 = Can�t stat /dev/dsk/c1t0d0s0

  • run format ----- ==== Available disk = C1t1d0s0

You see, although I have put the disk (hd-2 ) in slot 0 does not recognize it still sees in slot 1.

relating to UFSDUMP:
Is another way I have tried to solve the problem of error in the machine with the hd failed.
On anothermachine (SunFireV890) with a single disk (operating 100%), I put another HD and made a copy of one disk to another with ufsdump / ufsrestore.
When I put the copy made in slot 0, in this machine I get the same problem.:wall:

again thank you very much for your help !!

---------- Post updated at 12:16 PM ---------- Previous update was at 11:28 AM ----------

The 2nd disk is booting from c1t1d0s0 !!
I managed to boot the machine with the HD-2 leaving in the slot-1

but I would like to know, why? My copies/clones in raid 1 (mirror) or ufsdump, when I have to connected to the SCSI slot 0, always recognized as slot 1 (c1t1d0s0)

I tested the vfstab
I tested the boot-device in OBP
I tried it on different machines

Thanks a lot friends !!!

9

in V890 are NO scsi disks! there are only (internal) fcal disks... so the disk is seen by the system with the WWN. have a look here for a nice procedure on how to replace a disk.

1 Like
10

Thanks for help me

Next monday tell you something

Have a nice week end !!

11

Hello again friends
I followed the procedure that DukeNuke2 told me, but I still have the same problem. The hard drives I have installed (2) are Fujitsu Map3147 SCA2 FC FC-AL, did not know who called FibreChanel.

Well, I have everything working perfectly, but I still have the question of why? if it breaks my disk 1 (c1t0d0s0-slot0) and insert disk 2 (slot1-c1t1d0s0) in slot 0, setting it well, I can�t start because It�s recognized like if it were inserted in slot 1.

Thanks a lot friends :b: