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207 Posts
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906
August 6th, 2014 14:00
New VMAX FAST info
We are implementing our first VMAX 20k arrays. I am familiar with DMX4 without FAST. As I am migrating data from the dmx4s to the VMAX, when a host is close being completely migrated, I add a policy (bronze, silver, gold) to the SG. At that point I can see all the data is in the FBA-FC pool. This is because all the vols were bound to that thin pool.
When I come in the next day I see data in the SG is no spread across my 3 tiers EFD, FC, SATA based on the policy. Is there some reporting or way for me to see what happened behind the scenes. Maybe something that show when and what was migrated to the various tiers etc.
Thanks
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seancummins
2 Intern
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226 Posts
0
August 6th, 2014 15:00
Brad,
To see the distribution of capacity across tiers/pools for a particular TDEV, try this command:
symcfg -sid 6445 list -tdev -dev 1b2b -detail -gb
You can also leave out the '-dev 1b2b' and it will show you all TDEVs in the system.
The ingress/egress counters should be visible in the FAST dashboards within the Performance section of Unisphere for VMAX.
Thanks,
- Sean
Quincy561
1.3K Posts
0
August 6th, 2014 15:00
Unisphere performance views will show those counters
symcfg list -tdevs -detail should show allocations per TDEV. You should also be able to see this in Unisphere.
FAST VP is very different from full volume FAST or Optimizer where a whole device moves to another disk or technology. With that sort of movement, it makes sense to log each move. When we move as little as 768k at a time, it doesn't make sense to log each movement.
brad12341
207 Posts
0
August 6th, 2014 15:00
Ahhh, nice command. I can see most of the data in FC and some hot data in EFD. Not sure why Pool Allocated GBs is only 167 while Total Written GBs is 200. Seems Pool Total Allocated would be 200GB as well (since that is how much was written). C:\Users\br17348-a>symcfg -sid 6445 list -tdev -dev 1b4c -detail -gb Symmetrix ID: 000192606445 Enabled Capacity (GBs) : 292941.4 Bound Capacity (GBs) : 250.0 S Y M M E T R I X T H I N D E V I C E S ------------------------------------------------------------------------------------- Pool Pool Total Compressed Bound Flags Total Subs Allocated Written Size/Ratio Sym Pool Name ESPT GBs (%) GBs (%) GBs (%) GBs (%) ---- ------------ ----- ---------- ----- ---------- --- ---------- --- ---------- --- 1B4C FBA-FC F..B 250.0 0 167 67 200.0 80 167.7 0 FBA-SATA -.-- - - 0 0 - - 0.0 0 FBA-EFD -.-- - - 32 13 - - 32.3 0 Total ---------- ----- ---------- --- ---------- --- ---------- --- GBs 250.0 0 200.1 0 200.0 0 200.1 0 Legend: Flags: (E)mulation : A = AS400, F = FBA, 8 = CKD3380, 9 = CKD3390 (S)hared Tracks : S = Shared Tracks Present, . = No Shared Tracks (P)ersistent Allocs : A = All, S = Some, . = None S(T)atus : B = Bound, I = Binding, U = Unbinding, A = Allocating, D = Deallocating, R = Reclaiming, C = Compressing, N = Uncompressing, . = Unbound,
brad12341
207 Posts
1
August 6th, 2014 15:00
ok, so where do I find these ingress/egress counters? Seems like there would be some kind of reporting or logs with some detailed info.
Here is the symdev info for one of the TDEVs in the SG. Not sure where to find the detailed FAST allocation info.
C:\Users\br17348-a>symdev show 1b2b -sid 6445
Device Physical Name : Not Visible
Device Symmetrix Name : 1B2B
Device Serial ID : N/A
Symmetrix ID : 000192606445
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 : 60000970000192606445533031423242
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 : FBA-FC
Device Block Size : 512
Device Capacity
{
Cylinders : 600754
Tracks : 9011310
512-byte Blocks : 1153447680
MegaBytes : 563207
KiloBytes : 576723840
Geometry Limited : No
}
Device External Identity
{
Device WWN : 60000970000192606445533031423242
Front Director Paths (4):
{
-----------------------------------
DIRECTOR PORT LUN
---------- ---- -------- ---------
Type Num Sts VBUS TID SYMM Host
-----------------------------------
FA 05E:0 RW 000 00 015 N/A
FA 06E:0 RW 000 00 015 N/A
FA 11E:0 RW 000 00 015 N/A
FA 12E:0 RW 000 00 015 N/A
}
Geometry : Native
{
Sectors/Track : 128
Tracks/Cylinder : 15
Cylinders : 600754
512-byte Blocks : 1153447680
MegaBytes : 563207
KiloBytes : 576723840
}
}
Device Configuration : TDEV (Meta Head)
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 : False
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 (4):
{
--------------------------------------------------------------------
POWERPATH DIRECTOR PORT LUN
--------- ---------- ---- -------- -------
PdevName Type Type Num Sts VBUS TID SYMM Ho
--------------------------------------------------------------------
Not Visible N/A FA 05E:0 RW 000 00 015 N/
Not Visible N/A FA 06E:0 RW 000 00 015 N/
Not Visible N/A FA 11E:0 RW 000 00 015 N/
Not Visible N/A FA 12E:0 RW 000 00 015 N/
}
Meta Configuration : Striped
Meta Stripe Size : 960k (1 Cylinders)
Meta Device Members (11) :
{
--------------------------------------------------------------------
BCV DATA RDF DATA
---------------------------- ------------------------
Sym Cap Std Inv BCV Inv Pair R1 Inv R2 Inv Pair
Dev (MB) Tracks Tracks State Tracks Tracks State
--------------------------------------------------------------------
--> 1B2B 51201 - - N/A - - N/A
1B2C 51201 - - N/A - - N/A
1B2D 51201 - - N/A - - N/A
1B2E 51201 - - N/A - - N/A
1B2F 51201 - - N/A - - N/A
1B30 51201 - - N/A - - N/A
1B31 51201 - - N/A - - N/A
1B32 51201 - - N/A - - N/A
1B33 51201 - - N/A - - N/A
1B34 51201 - - N/A - - N/A
1B35 51201 - - N/A - - N/A
--------------------------------------------------------------------
563207 - - - -
}
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
}
Quincy561
1.3K Posts
0
August 6th, 2014 15:00
There are ingress and egress counters for each pool. You can also look at any or all TDEVs for the detailed allocation per device.
bhalilov1
1 Rookie
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114 Posts
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August 6th, 2014 16:00
There is a very nice graph in Unispere VMAX that will show you how was the storage allocated/moved between the tiers.
Select your VMAX, Performance -> Analyze, select Historical
Double click on Array SID, then select the "Storage Groups" Tab
Double click on the Storage group you need to see, then go to "Virtual Pool Tier" , you will see the tiers that this SG is allocating from.
Cntrl-Select all tiers, the select the "Allocated Pool Capacity" Metrics and draw a graph. You will get something like this:
In my case the volumes were bound to the FC tier FCR1 (yellow) and migrated from another array (using OpenReplicator) . After the migration finished FAST-VP moved the majority of the allocations to SATA Tier SAR6 (blue line) and some went to Flash EFR5 (red line)
brad12341
207 Posts
0
August 6th, 2014 16:00
Well, my cut and paste did not come out to well but as I look closer at the output it all makes sense. Thanks for the replys.