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721
July 21st, 2015 09:00
Duplicate names between thin pools after VLUN Migration
I'm moving some bound volumes between two different thin pools (and backing storage groups) to appease a DBA manager.
I've done a VLUN migration, pinned the volume, confirmed that it completed, then terminated the session. The name of the LUN still exist as a bound volume in the original thin pool and has 0% allocated, while the same name exists as other pool bond volumes and has 100% allocated.
I was under the impression that the VLUN migration would take the LUN from one thin pool to another thin pool transparently and not leave some residual volume pointer around.
I tried it with another volume in the same thin pool, and did a VLUN migration. This time, I did not pin the volume, selected the same thin pool (different from the original) and confirmed both from SMC and the SE (using symmigrate) that the migration completed. When I terminated that session, I don't see that volume in the new thin pool, as a bound volume, or as an other pool bound volume.
Ideas?
umichklewis
3 Apprentice
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1.2K Posts
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July 21st, 2015 12:00
Can you check the status of the LUN with symdev? I've seen strange behaviors in older SMC and Unisphere for VMAX (UfV), where we needed to re-discover the VMAX to get pool associations visible in UfV.
Let us know what you find!
Karl
suntzutech
2 Posts
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July 21st, 2015 13:00
From the Solutions Enabler, I do a symdev list | grep 05DD and see
05DD Not Visible ***:* NA:NA TDEV N/Grp'd RW 131073
when I do a:
symdev show 05DD
I get: I was expecting that VLUN migration would move from ASE_R5 to ASE_R5_20K. I see one in unisphere as an other pool bound volume with the same id (05DD), but don't get what I'm missing here.
Symmetrix ID: 000192606519
Device Physical Name : Not Visible
Device Symmetrix Name : 05DD
Device Serial ID : N/A
Symmetrix ID : 000192606519
Number of RAID Groups : 0
Encapsulated Device : No
Encapsulated WWN : N/A
Encapsulated Array ID : N/A
Encapsulated Device Name : N/A
Attached BCV Device : N/A
Attached VDEV TGT Device : N/A
Vendor ID : EMC
Product ID : SYMMETRIX
Product Revision : 5876
Device WWN : 60000970000192606519533030354444
Device Emulation Type : FBA
Device Defined Label Type: N/A
Device Defined Label : N/A
Device Sub System Id : 0x0001
Cache Partition Name : DEFAULT_PARTITION
Bound Thin Pool Name : ASE_R5
Device Block Size : 512
Device Capacity
{
Cylinders : 139811
Tracks : 2097165
512-byte Blocks : 268437120
MegaBytes : 131073
KiloBytes : 134218560
Geometry Limited : No
}
Device External Identity
{
Device WWN : 60000970000192606519533030354444
Front Director Paths (12):
{
-----------------------------------
DIRECTOR PORT LUN
---------- ---- -------- ---------
Type Num Sts VBUS TID SYMM Host
-----------------------------------
FA 05E:0 RW 000 00 014 N/A
FA 06E:0 RW 000 00 014 N/A
FA 07E:0 RW 000 00 014 N/A
FA 08E:0 RW 000 00 014 N/A
FA 09E:0 RW 000 00 014 N/A
FA 10E:0 RW 000 00 014 N/A
FA 05H:0 RW 000 00 014 N/A
FA 06H:0 RW 000 00 014 N/A
FA 07H:0 RW 000 00 013 N/A
FA 08H:0 RW 000 00 014 N/A
FA 09H:0 RW 000 00 014 N/A
FA 10H:0 RW 000 00 013 N/A
}
Geometry : Native
{
Sectors/Track : 128
Tracks/Cylinder : 15
Cylinders : 139811
512-byte Blocks : 268437120
MegaBytes : 131073
KiloBytes : 134218560
}
}
Device Configuration : TDEV
Device is WORM Enabled : No
Device is WORM Protected : No
SCSI-3 Persistent Reserve: Enabled
Dynamic Spare Invoked : No
Dynamic RDF Capability : None
STAR Mode : No
STAR Recovery Capability : None
STAR Recovery State : NA
SQAR_MODE : No
Device Service State : Normal
Device Status : Ready (RW)
Device SA Status : Ready (RW)
Device User Pinned : True
Host Access Mode : Active
Device Tag(s) : None
Extent Based Clone : None
DIF1 Flag : False
AS400_GK : False
Host Cache Registered : False
Optimized Read Miss : System
Front Director Paths (12):
{
----------------------------------------------------------------------
POWERPATH DIRECTOR PORT LUN
--------- ---------- ---- -------- ---------
PdevName Type Type Num Sts VBUS TID SYMM Host
----------------------------------------------------------------------
Not Visible N/A FA 05E:0 RW 000 00 014 N/A
Not Visible N/A FA 06E:0 RW 000 00 014 N/A
Not Visible N/A FA 07E:0 RW 000 00 014 N/A
Not Visible N/A FA 08E:0 RW 000 00 014 N/A
Not Visible N/A FA 09E:0 RW 000 00 014 N/A
Not Visible N/A FA 10E:0 RW 000 00 014 N/A
Not Visible N/A FA 05H:0 RW 000 00 014 N/A
Not Visible N/A FA 06H:0 RW 000 00 014 N/A
Not Visible N/A FA 07H:0 RW 000 00 013 N/A
Not Visible N/A FA 08H:0 RW 000 00 014 N/A
Not Visible N/A FA 09H:0 RW 000 00 014 N/A
Not Visible N/A FA 10H:0 RW 000 00 013 N/A
}
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]
Spindle ID : N/A
Disk Director Volume Number : N/A
Hyper Number : N/A
Mirror Number : 1
}