How big are my disk arrays?

Question

On my SunOS 5.10 host are there 3 Sun 6140 disk arrays, and I would like to know the disk capacities.

According to zpool list do I have a 5TB and 16TB pool. format shows me only 12 disks

c2t1d31: configured with capacity of 16.00MB
c3t4d31: configured with capacity of 16.00MB
c5t4d31: configured with capacity of 16.00MB
c6t1d31: configured with capacity of 16.00MB

AVAILABLE DISK SELECTIONS:
       0. c0t0d0 <LSILOGIC-LogicalVolume-3000 cyl 65533 alt 2 hd 16 sec 136>
          /pci@780/pci@0/pci@9/scsi@0/sd@0,0
       1. c2t1d31 <SUN-UniversalXport-0660 cyl 8 alt 2 hd 64 sec 64>
          /pci@7c0/pci@0/pci@8/SUNW,qlc@0/fp@0,0/ssd@w200400a0b826ab41,1f
       2. c3t4d31 <SUN-UniversalXport-0660 cyl 8 alt 2 hd 64 sec 64>
          /pci@7c0/pci@0/pci@8/SUNW,qlc@0,1/fp@0,0/ssd@w200700a0b826e4f3,1f
       3. c4t600A0B800026E4F20000056E49377BFCd0 <SUN-CSM200_R-0660-1.65TB>
          /scsi_vhci/ssd@g600a0b800026e4f20000056e49377bfc
       4. c4t600A0B800026E4F20000056F49377C9Cd0 <SUN-CSM200_R-0660-1.65TB>
          /scsi_vhci/ssd@g600a0b800026e4f20000056f49377c9c
       5. c4t600A0B800026E4F20000057049377D00d0 <SUN-CSM200_R-0660-1.65TB>
          /scsi_vhci/ssd@g600a0b800026e4f20000057049377d00
       6. c4t600A0B800026E6960000044A4637FB93d0 <SUN-CSM200_R-0660-1.82TB>
          /scsi_vhci/ssd@g600a0b800026e6960000044a4637fb93
       7. c4t600A0B800026E6960000056049377BCBd0 <SUN-CSM200_R-0660-1.99TB>
          /scsi_vhci/ssd@g600a0b800026e6960000056049377bcb
       8. c4t600A0B800026E6960000043C4637FA2Dd0 <SUN-CSM200_R-0660-1.82TB>
          /scsi_vhci/ssd@g600a0b800026e6960000043c4637fa2d
       9. c4t600A0B800026E6960000055C49377AB7d0 <SUN-CSM200_R-0660-1.99TB>
          /scsi_vhci/ssd@g600a0b800026e6960000055c49377ab7
      10. c4t600A0B800026E6960000055E49377B4Fd0 <SUN-CSM200_R-0660-1.99TB>
          /scsi_vhci/ssd@g600a0b800026e6960000055e49377b4f
      11. c4t600A0B800026E696000004444637FB39d0 <SUN-CSM200_R-0660-1.82TB>
          /scsi_vhci/ssd@g600a0b800026e696000004444637fb39
      12. c4t600A0B800029015800000539461071B7d0 <SUN-CSM200_R-0660-1.36TB>
          /scsi_vhci/ssd@g600a0b800029015800000539461071b7
      13. c4t600A0B80002901580000052B46106563d0 <SUN-CSM200_R-0660-1.82TB>
          /scsi_vhci/ssd@g600a0b80002901580000052b46106563
      14. c4t600A0B80002901580000053346107101d0 <SUN-CSM200_R-0660-1.82TB>
          /scsi_vhci/ssd@g600a0b80002901580000053346107101
      15. c5t4d31 <SUN-UniversalXport-0660 cyl 8 alt 2 hd 64 sec 64>
          /pci@7c0/pci@0/pci@9/SUNW,qlc@0/fp@0,0/ssd@w200500a0b826ab41,1f
      16. c6t1d31 <SUN-UniversalXport-0660 cyl 8 alt 2 hd 64 sec 64>
          /pci@7c0/pci@0/pci@9/SUNW,qlc@0,1/fp@0,0/ssd@w200600a0b826e4f3,1f

and what is strange here is that format claims the disks are larger than 1TB, which can not be the case according to the 6140 datasheet.

/etc/hosts contain

#6140 Disk array
10.0.68.65
10.0.68.66
10.0.68.67
10.0.68.68

where all can be ping'ed.

I don't see any RAID with zpool status

  pool: dat0
 state: ONLINE
 scan: none requested
config:

        NAME                                     STATE     READ WRITE CKSUM
        dat0                                     ONLINE       0     0     0
          c4t600A0B800026E6960000044A4637FB93d0  ONLINE       0     0     0
          c4t600A0B800026E6960000043C4637FA2Dd0  ONLINE       0     0     0
          c4t600A0B800026E696000004444637FB39d0  ONLINE       0     0     0
          c4t600A0B800026E6960000055C49377AB7d0  ONLINE       0     0     0
          c4t600A0B800026E4F20000056E49377BFCd0  ONLINE       0     0     0
          c4t600A0B800026E6960000055E49377B4Fd0  ONLINE       0     0     0
          c4t600A0B800026E4F20000056F49377C9Cd0  ONLINE       0     0     0
          c4t600A0B800026E4F20000057049377D00d0  ONLINE       0     0     0
          c4t600A0B800026E6960000056049377BCBd0  ONLINE       0     0     0

errors: No known data errors

  pool: dat1
 state: ONLINE
 scan: none requested
config:

        NAME                                     STATE     READ WRITE CKSUM
        dat1                                     ONLINE       0     0     0
          c4t600A0B800029015800000539461071B7d0  ONLINE       0     0     0
          c4t600A0B80002901580000053346107101d0  ONLINE       0     0     0
          c4t600A0B80002901580000052B46106563d0  ONLINE       0     0     0

errors: No known data errors

Question

As each 6140 have 16 disks, I would expect to see 3x16 disks, but I only see 12 which larger capacity then the datasheet allows, and I don't see any raid configured. And way are the reported disk sizes so different from disk to disk?

How do I find the disks real capacity?

score 2 · Accepted Answer · answered Aug 09 '14 at 01:31

2

You're expecting a JBOD, but it appears that this might be set up as a SAN, and you're seeing LUNs. You should check the 6140s themselves.

answered Aug 09 '14 at 01:31

Basil

8,811
3
37
73

Yes it is a SAN. Why would it be configured with LUNs and not just as a JBOD? – Jasmine Lognnes Aug 09 '14 at 16:11
1

Terminology matters here- a SAN is technically the entire network for the storage- all the switching, storage controllers, and client hookups (like HBAs and blade interconnects). A JBOD can live in a SAN, but rarely does. A JBOD is almost always directly attached to a server, and relies on the server's RAID card to control the disks. A more commonly seen setup is where the disk controller has its own raid management system and provides virtual disks (LUNs) to whatever servers connect to it. – Basil Aug 11 '14 at 19:05

score 0 · Answer 2 · answered Oct 09 '15 at 18:56

0

If you think the OS is lying to you, you can run this

zfs list

It will show you how much space ZFS has available from those disks.

answered Oct 09 '15 at 18:56

Ryan Babchishin

6,160
2
16
36

How big are my disk arrays?

2 Answers2

Linked