weird ioscan result

[Henry Chua]

Hi Guys,

I have only 2 internal drive 1 external, 1 external storing 3 hardisks, when i pull the external off, i replgged everything back and query ioscan -fnCdisk the result is as such:

1 Class I H/W Path Driver S/W State H/W Type Description
2 =====================================================================
3 disk 10 8/4.0.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
4 /dev/dsk/c3t0d0 /dev/rdsk/c3t0d0
5 disk 11 8/4.1.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
6 /dev/dsk/c3t1d0 /dev/rdsk/c3t1d0
7 disk 12 8/4.2.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
8 /dev/dsk/c3t2d0 /dev/rdsk/c3t2d0
9 disk 13 8/4.3.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
10 /dev/dsk/c3t3d0 /dev/rdsk/c3t3d0
11 disk 14 8/4.4.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
12 /dev/dsk/c3t4d0 /dev/rdsk/c3t4d0
13 disk 2 8/4.5.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
14 /dev/dsk/c3t5d0 /dev/rdsk/c3t5d0
15 disk 15 8/4.6.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
16 /dev/dsk/c3t6d0 /dev/rdsk/c3t6d0
17 disk 4 8/4.8.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
18 /dev/dsk/c3t8d0 /dev/rdsk/c3t8d0
19 disk 5 8/4.9.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
20 /dev/dsk/c3t9d0 /dev/rdsk/c3t9d0
21 disk 6 8/4.10.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
22 /dev/dsk/c3t10d0 /dev/rdsk/c3t10d0
23 disk 16 8/4.11.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
24 /dev/dsk/c3t11d0 /dev/rdsk/c3t11d0
25 disk 17 8/4.12.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
26 /dev/dsk/c3t12d0 /dev/rdsk/c3t12d0
27 disk 18 8/4.13.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
28 /dev/dsk/c3t13d0 /dev/rdsk/c3t13d0
29 disk 19 8/4.14.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
30 /dev/dsk/c3t14d0 /dev/rdsk/c3t14d0
31 disk 20 8/4.15.0 sdisk CLAIMED DEVICE SEAGATE ST34572WC
32 /dev/dsk/c3t15d0 /dev/rdsk/c3t15d0
33 disk 0 8/12.6.0 sdisk CLAIMED DEVICE QUANTUM XP34361WD
34 /dev/dsk/c0t6d0 /dev/rdsk/c0t6d0
35 disk 1 8/16/5.2.0 sdisk CLAIMED DEVICE TOSHIBA CD-ROM XM-5401TA
36 /dev/dsk/c1t2d0 /dev/rdsk/c1t2d0

how come there are so many disks??


regards
Henry
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[Adisuria Wangsadinata_1]

Hi Henry,

This happened when you unplugged the external storage online.

The device file system still on your system when you plug-in the external storage, that's why system will create another device file system since the system still have the information of the disk at previous device file.

The other reason is the SCSI-ID is changed.

Try to unplugged & plug in the external storage offline (if you have a downtime slot).

Hope this information can help you.

Cheers,
AW

[generic_1]

I think you are seeing multiple paths to the same disks. Check your adressing/dip switches, terminations, and update your drivers. Also make sure your disks and enclosure are compatible.