Yesterday, I was tasked to configure some new LUNs that allocated to a M500o server. All luns worked very well except one.
syminq command showed the disk is with 18G space, luxadmin showed the same result as well. But format command only recognize it as 9G.
bash-3.00# syminq | grep -i 195E
/dev/rdsk/c3t60060480000290100478533031393545d0s2 M(2) EMC SYMMETRIX 5771 780195E008 17677440 (here 18G)
bash-3.00# luxadm display /dev/rdsk/c3t60060480000290100478533031393543d0s2
DEVICE PROPERTIES for disk: /dev/rdsk/c3t60060480000290100478533031393543d0s2
Vendor: EMC
Product ID: SYMMETRIX
Revision: 5771
Serial Num: 10047895C008
Unformatted capacity: 17263.125 Mbytes <—————–18G
Read Cache: Enabled
Minimum prefetch: 0×0
Maximum prefetch: 0xffff
Device Type: Disk device
Path(s):
/dev/rdsk/c3t60060480000290100478533031393543d0s2
/devices/scsi_vhci/ssd@g60060480000290100478533031393543:c,raw
Controller /devices/pci@12,600000/SUNW,qlc@0/fp@0,0
Device Address 5006048452a53fb9,6a
Host controller port WWN 2100001b320f2023
Class primary
State ONLINE
Controller /devices/pci@12,600000/SUNW,qlc@0,1/fp@0,0
Device Address 5006048452a53fb6,6a
Host controller port WWN 2101001b322f2023
Class primary
State ONLINE
But, with format
55. c3t60060480000290100478533031393545d0 <EMC-SYMMETRIX-5771 cyl 18412 alt 2 hd 15 sec 128>
/scsi_vhci/ssd@g60060480000290100478533031393545
56. c3t60060480000290100478533031393543d0 <EMC-SYMMETRIX-5771 cyl 9205 alt 2 hd 15 sec 128> default4 <— only 9205 cylinders
/scsi_vhci/ssd@g60060480000290100478533031393543
57. c3t60060480000290100478533031343033d0 <EMC-SYMMETRIX-5771 cyl 36826 alt 2 hd 30 sec 128>
/scsi_vhci/ssd@g60060480000290100478533031343033
partition> p
Volume: default4
Current partition table (original):
Total disk cylinders available: 9205 + 2 (reserved cylinders)
Part Tag Flag Cylinders Size Blocks
0 unassigned wu 0 0 (0/0/0) 0
1 unassigned wu 0 0 (0/0/0) 0
2 backup wu 0 – 9204 8.43GB (9205/0/0) 17673600 <—– 9G
3 unassigned wu 0 0 (0/0/0) 0
4 unassigned wu 0 0 (0/0/0) 0
5 unassigned wu 0 0 (0/0/0) 0
6 unassigned wu 0 0 (0/0/0) 0
7 unassigned wu 0 0 (0/0/0) 0
partition>
This is becuase the disk got wrongly labelled before, we just need to manually destroy the label and re-label it.
dd if=/dev/zero of=/dev/rdsk/c3t60060480000290100478533031393543d0s2 bs=512k count=1
then go back to format and re-label the disk, afterwards, format reported it as 18G emc disk.
