Hello All,
Our servers having emc clarion for the data disks. Is that possible to see those san disks raid level from AIX ?
Am having AIX 6.1 and EMC clarion 5.5.
Regards,
Gowtham.G
I am not sure if i understand you correctly. If you mean that you want to see the underlying RAIDs from within the system the LUN is attached to: no, you can't. You can't because these are different logical levels of abstraction.
For the system where the LUN is attached to a "disk" is a disk, regardless from what hardware it is constructed. Virtually, the Clariion exports a (vSCSI) disk simply not telling the target system from what it is made of. The target system connects to this disk using a (virtualized) SCSI protocol. Basically, the traget system treats the disk like it would be a locally connected SCSI drive, not caring for what is "underneath" this abstraction.
I hope this helps.
bakunin
Thanks Bakunin, Thanks for your reply. I got the below command to check the details of the SAN disk. From the below output we can get the raid details too.
symdev -sid 1481 show 1B99
Device Physical Name : /dev/rhdiskpower6
Device Symmetrix Name : 1B99
Device Serial ID : 8101B99008
Symmetrix ID : 000292601481
Number of RAID Groups : 0
Attached BCV Device : N/A
Attached VDEV TGT Device : N/A
Vendor ID : EMC
Product ID : SYMMETRIX
Product Revision : 5875
Device WWN : 60000970000292601481533031423939
Device Emulation Type : FBA
Device Defined Label Type: N/A
Device Defined Label : N/A
Device Sub System Id : 0x0018
Cache Partition Name : DEFAULT_PARTITION
Bound Thin Pool Name : RAID1_FC
Device Block Size : 512
Device Capacity
{
Cylinders : 55242
Tracks : 828630
512-byte Blocks : 106064640
MegaBytes : 51789
KiloBytes : 53032320
}
Device External Identity
{
Device WWN : 60000970000292601481533031423939
Front Director Paths (2):
{
-----------------------------------
DIRECTOR PORT LUN
---------- ---- -------- ---------
Type Num Sts VBUS TID SYMM Host
-----------------------------------
FA 07E:1 RW 000 00 0DE 008
FA 08E:1 RW 000 00 0DE 008
}
Geometry : Native
{
Sectors/Track : 128
Tracks/Cylinder : 15
Cylinders : 55242
512-byte Blocks : 106064640
MegaBytes : 51789
KiloBytes : 53032320
}
}
Device Configuration : TDEV (Meta Head)
Device is WORM Enabled : No
Device is WORM Protected : No
SCSI-3 Persistent Reserve: Disabled
Dynamic Spare Invoked : No
Dynamic RDF Capability : RDF1_OR_RDF2_Capable
STAR Mode : No
STAR Recovery Capability : None
STAR Recovery State : NA
Device Service State : Normal
Device Status : Ready (RW)
Device SA Status : Ready (RW)
Device User Pinned : FALSE
Host Access Mode : ACTIVE
Extent Based Clone : None
Front Director Paths (3):
{
----------------------------------------------------------------------
POWERPATH DIRECTOR PORT LUN
--------- ---------- ---- -------- ---------
PdevName Type Type Num Sts VBUS TID SYMM Host
----------------------------------------------------------------------
/dev/rhdiskpower6 PARENT FA 07E:1 RW 000 00 0DE 008
/dev/rhdisk35 CHILD FA 08E:1 RW 000 00 0DE 008
/dev/rhdisk9 CHILD FA 07E:1 RW 000 00 0DE 008
}
Meta Configuration : Striped
Meta Stripe Size : 960k (1 Cylinders)
Meta Device Members (3) :
{
----------------------------------------------------------------------
BCV DATA RDF DATA
---------------------------- --------------------------
Sym Cap Std Inv BCV Inv Pair R1 Inv R2 Inv Pair
Dev (MB) Tracks Tracks State Tracks Tracks State
----------------------------------------------------------------------
--> 1B99 17263 - - N/A - - N/A
1B9A 17263 - - N/A - - N/A
1B9B 17263 - - N/A - - N/A
----------------------------------------------------------------------
51789 - - - -
}
Mirror Set Type : [Thin,N/A,N/A,N/A]
Mirror Set DA Status : [RW,N/A,N/A,N/A]
Mirror Set Inv. Tracks : [0,0,0,0]
Back End Disk Director Information
{
Hyper Type : Thin
Hyper Status : Ready (RW)
Disk [Director, Interface, TID] : [N/A,N/A,N/A]
Disk Director Volume Number : N/A
Hyper Number : N/A
Mirror Number : 1
}
Bound Thin Pool Name : RAID1_FC
This is a name, not the actual value of a configuration. So you depend on the fact, that someone or some mechanism is setting the name accordingly.
So what Bakunin said is still true - you basically can't get that information directly.