Example Of The Essvol Script; Example Of The Scu Command - IBM TotalStorage DS6000 Attachment Manual
Host systems attachment guide
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Also See for TotalStorage DS6000:
- Redbook (578 pages) ,
- Redbooks (406 pages) ,
- Introduction and planning manual (119 pages)
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Figure 18. Example of the essvol script
Use the scu command to see the reservations on these devices. Figure 19 and
Figure 20 on page 39 show examples of what you see when you use the scu
command. You can associate dsk47 on Alpha1 and Alpha2 with storage unit volume
10a-21380.
Figure 19. Example of the scu command
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DS6000 Host Systems Attachment Guide
alpha1> essvol
DS vol, H/W ID 176:
phys_location = bus-9-targ-0-lun-0
dev_base_name = dsk43
capacity = 3906304
serial_number = SCSI-WWID:01000010:6000-1fe1-4942-4d20-0000-0000-1042-1380
DS vol, H/W ID 225:
phys_location = bus-9-targ-0-lun-7
dev_base_name = dsk47
capacity = 3906304
serial_number = SCSI-WWID:01000010:6000-1fe1-4942-4d20-0000-0000-10a2-1380
alpha2> essvol
DS vol, H/W ID 176:
phys_location = bus-4-targ-0-lun-0
dev_base_name = dsk43
capacity = 3906304
serial_number = SCSI-WWID:01000010:6000-1fe1-4942-4d20-0000-0000-1042-1380
DS vol, H/W ID 225:
phys_location = bus-3-targ-0-lun-1
dev_base_name = dsk47
capacity = 3906304
serial_number = SCSI-WWID:01000010:6000-1fe1-4942-4d20-0000-0000-10a2-1380
alpha1> scu –f /dev/rdisk/dsk47c show reservations
Persistent Reservation Header:
Generation Value: 49
Additional Length: 16
Reservation Descriptors:
Reservation Key: 0x30001
Scope-Specific Address: 0
Reservation Type: 0x5 (Write Exclusive Registrants Only)
Reservation Scope: 0 (LU - full logical unit)
Extent Length: 0
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