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Go to SolutionBasic question about meta device members
Hi,
Sorry if this is a basic question.
I have a device configured with the size of 122 gb and has 4 meta members.
What are these meta members? Are they physical disks or logical?
Also if I have number of configured sym devices in dmx is 1900 (we have 150 configured actual disks), are they all physical disks?
Thanks.
Sorry if this is a basic question.
I have a device configured with the size of 122 gb and has 4 meta members.
What are these meta members? Are they physical disks or logical?
Also if I have number of configured sym devices in dmx is 1900 (we have 150 configured actual disks), are they all physical disks?
Thanks.
256
1
Posted June 17th, 2009 16:00
Meta members are logical devices. Each logical device could be on as few as 2 physical disks (mirrored) or 16 physical disks (14+2 RAID6)
If you have 150 physical disks, you have 150 physical disks which seem to have 1900 logical volumes defined on them.256
0
Posted June 17th, 2009 18:00
Quincy, Thanks. Is there anyway to find what is the capacity of the actual disk?256
0
Posted June 18th, 2009 08:00
Hate to state the obvious, but if you have physical access to the array you can always open the front door on one of the storage bays and have a look
Quincy561
1281 Posts
256
0
Posted June 17th, 2009 18:00
Example:
xpro51-root> symdev list |head -20
Symmetrix ID: 000192601187
Device Name Directors Device
--------------------------- ------------- -------------------------------------
Cap
Sym Physical SA :P DA :IT Config Attribute Sts (MB)
--------------------------- ------------- -------------------------------------
0028 /dev/rdsk/c11t0d11s2 08F:0 08A:C15 RAID-5 N/Grp'd RW 32813
0029 /dev/rdsk/c15t0d18s2 08G:1 07A:C18 RAID-5 N/Grp'd RW 32813
002A Not Visible 07F:0 08A:C1B RAID-5 N/Grp'd RW 32813
002B /dev/rdsk/c14t0d7s2 08F:1 07A:C1C RAID-5 N/Grp'd RW 32813
002C /dev/rdsk/c17t0d43s2 08H:1 08A:C19 RAID-5 N/Grp'd RW 32813
002D Not Visible 07H:1 07A:C10 RAID-5 N/Grp'd RW 32813
002E /dev/rdsk/c17t0d35s2 08H:1 08A:C17 RAID-5 N/Grp'd RW 32813
002F /dev/rdsk/c18t0d46s2 08G:0 07A:C12 RAID-5 N/Grp'd RW 32813
0030 /dev/rdsk/c16t0d32s2 08E:1 08A:CF RAID-5 N/Grp'd RW 32813
0031 Not Visible 07F:0 07A:C16 RAID-5 N/Grp'd RW 32813
0032 Not Visible 07F:1 08A:C7 RAID-5 N/Grp'd RW 32813
xpro51-root> symdev show 0028
Symmetrix ID: 000192601187
Device Physical Name : /dev/rdsk/c11t0d11s2
Device Symmetrix Name : 0028
Device Serial ID : 8700028580
Symmetrix ID : 000192601187
Number of RAID Groups : 1
Attached BCV Device : N/A
Attached VDEV TGT Device : N/A
Vendor ID : EMC
Product ID : SYMMETRIX
Product Revision : 5874
Device WWN : 60000970000192601187533030303238
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
Device Block Size : 512
Device Capacity
{
Cylinders : 35000
Tracks : 525000
512-byte Blocks : 67200000
MegaBytes : 32813
KiloBytes : 33600000
}
Device Configuration : RAID-5
Device is WORM Enabled : No
Device is WORM Protected : No
SCSI-3 Persistent Reserve: Disabled
Dynamic Spare Invoked : No
Dynamic RDF Capability : None
STAR Mode : No
STAR Recovery Capability : None
STAR Recovery State : NA
Device Service State : Normal
Device Status : Ready (RW)
Device SA Status : Ready (RW)
Front Director Paths (1):
{
----------------------------------------------------------------------
POWERPATH DIRECTOR PORT LUN
--------- ---------- ---- -------- ---------
PdevName Type Type Num Sts VBUS TID SYMM Host
----------------------------------------------------------------------
/dev/rdsk/c11t0d11s2 N/A FA 08F:0 RW 000 00 00B 00B
}
Mirror Set Type : [RAID-5,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 : RAID-5
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
}
RAID Group Information
{
Mirror Number : 1
RAID Type : RAID-5
Device Position : Primary
Protection Level : 7+1
RAID Group Service State : Normal
Failing Member Mask : N/A
Hyper Devices:
{
Device : 0028
{
------------------------------------------------------
Disk DA Hyper Member Disk
DA :IT Vol# Num Cap(MB) Num Status Grp# Cap(MB)
------------------------------------------------------
08A:C15 275 1 4761 1 RW 1 139028
08B:D15 636 1 4761 2 RW 1 139028
08C:C15 227 1 4761 3 RW 1 139028
08D:D15 540 1 4761 4 RW 1 139028
07A:D15 636 1 4761 5 RW 1 139028
07B:C15 275 1 4761 6 RW 1 139028
07C:D15 540 1 4761 7 RW 1 139028
07D:C15 227 1 4761 8 RW 1 139028
}
}
}
xpro51-root> symdisk show 08A:C15
Symmetrix ID : 000192601187
Director : DF-8A
Interface : C
Target ID : 15
Disk Group Number : 1
Vendor ID : SEAGATE
Product ID : SXT14685FC
Product Revision : T146155
Serial ID : 3LN52L0G
Disk Blocks : 280348463
Block Size : 520
Actual Disk Blocks : 280348463
Total Disk Capacity (MB) : 139028
Free Disk Capacity (MB) : 952
Actual Disk Capacity (MB) : 139028
Hot Spare : False
Failed Disk : False
Hypers (29):
{
# Vol Emulation Dev Type Mir Mbr Status Cap(MB)
--- ---- ---------------- ---- ------------- --- --- -------------- --------
1 275 FBA 0028 RAID-5 1 1 Ready 4761
2 276 FBA 003B RAID-5 1 2 Ready 4761
3 277 FBA 004E RAID-5 1 3 Ready 4761
4 278 FBA 0061 RAID-5 1 4 Ready 4761
5 279 FBA 0074 RAID-5 1 5 Ready 4761
6 280 FBA 0087 RAID-5 1 6 Ready 4761
7 281 FBA 009A RAID-5 1 7 Ready 4761
8 282 FBA 00AD RAID-5 1 8 Ready 4761
9 283 FBA 00C0 RAID-5 1 1 Ready 4761
10 284 FBA 00D3 RAID-5 1 2 Ready 4761
11 285 FBA 00E6 RAID-5 1 3 Ready 4761
12 286 FBA 00F9 RAID-5 1 4 Ready 4761
13 287 FBA 010C RAID-5 1 5 Ready 4761
14 288 FBA 011F RAID-5 1 6 Ready 4761
15 289 FBA 0132 RAID-5 1 7 Ready 4761
16 290 FBA 0145 RAID-5 1 8 Ready 4761
17 291 FBA 0158 RAID-5 1 1 Ready 4761
18 292 FBA 016B RAID-5 1 2 Ready 4761
19 293 FBA 017E RAID-5 1 3 Ready 4761
20 294 FBA 0191 RAID-5 1 4 Ready 4761
21 295 FBA 01A4 RAID-5 1 5 Ready 4761
22 296 FBA 01B7 RAID-5 1 6 Ready 4761
23 297 FBA 01CA RAID-5 1 7 Ready 4761
24 298 FBA 01DD RAID-5 1 8 Ready 4761
25 299 FBA 01F0 RAID-5 1 1 Ready 4761
26 300 FBA 0203 RAID-5 1 2 Ready 4761
27 301 FBA 0216 RAID-5 1 3 Ready 4761
28 302 FBA 0229 RAID-5 1 4 Ready 4761
29 303 FBA 023B RAID-5 1 5 Ready 4761
}