no such device or address

[jason thompson_1]

I have an EMC disk array that gives me the "no such device or address errno 6" on boot up. Ioscan shows the drives. the S\W State is CLAIMED and the H\W Type is DEVICE for all disks. I tried using insf -H -e to recreate any missing dev files but it still gives me the same error when trying to mount. Can anyone give some assistance?

[Michael Tully]

Hi,

First, do the device files get created from running 'insf'?
If so are you trying to mount a disk somehow?
If so what method? Are these disks already part of a volume group?

If the devices are present, what happens when you try this:

# diskinfo /dev/rdsk/c0t6d0 (substitute your disk here)

Let us know the results.

Michael

[Fragon]

How about remove its device files in /etc/(r)dsk/ manually and issue "insf" to re-create them?

-Gerald-

[Stefan Farrelly]

Do the /dev/dsk/cxxxx entries for your volume group(s) match those shown in ioscan -fknCdisk ? Weve had problems here before where we either upgrade the backplane on an N or L, or EMC are doing some work on the ESN console machine which controls the fibre connections and on next reboot all the /dev/dsk/cxxxx entries for our EMC disks have now changed which means you cant mount them! have to export the VG and reimport using the new /dev/dsk/cxxxx entries.

[Animesh Chakraborty]

Hi,
Any changes done recently ?

[Ceesjan van Hattum]

1. Remove hardware
2. rmsf
3. mv /etc/ioconfig /etc/ioconfig.old
4. ioscanf -fCdisk
5. insf -H 14/0/0.6
(not 0.6.0 if disk is c0t6d0)
6. reboot

Sometimes step 3 did the trick for me..

Succes,
Ceesjan

[jason thompson_1]

Yes these disks are already part of a volume group. diskinfo reports the same on all disks,
vendor:EMC
product id: SYMMETRIX
type: direct access
size: 4253760 Kbytes
bytes per sector: 512