Article Number: 000016159
Unisphere for VMAX: Unable to see any spare disks in Symmetrix Details Dashboard for VMAX3.
Summary: This article explains the resolution when you are unable to see any spare disks in Symmetrix Details Dashboard for VMAX3.
Article Content
Symptoms
Unable to see any spare disks in Unisphere for VMAX Symmetrix Details Dashboard.
"Number of Configured Spare Disks" in Unisphere is 0 (zero). Solutions Enabler is also showing none as well:
In Solutions Enabler it shows there is spare coverage:
The command C:\ symdisk -sid XXXX list -spindle -isspare states that NO matching disks were found:
Symmetrix ID : 000XXXXXXXXX
"Number of Configured Spare Disks" in Unisphere is 0 (zero). Solutions Enabler is also showing none as well:
In Solutions Enabler it shows there is spare coverage:
C:\ symdisk list -sid XXXX -dskgrp_summary -by_engine or symdisk -sid xyz list -isspare
Symmetrix ID: 000XXXXXXXXX
Disk Hyper Usable Capacity Spare Coverage
------------------------ ------- ------------------- -----------------
Flgs Speed Size Total Total Avail
Grp Eng Cnt LT (RPM) (MB) Disk (%) (MB) Disk (%) Disk (%)
---- --- ---- ---- ----- ------- ---- --- ---------- ---- --- ---- ---
1 1 49 IF 10000 71503 48 98 54913950 1 2 1 100
2 1 66 IF 10000 34871 64 97 35708400 2 3 2 100
3 1 17 IE 0 47668 16 95 12203100 1 6 1 100
---- ---- --- ---------- ---- --- ---- ---
Total 132 128 98 102825450 4 3 4 100
Legend:
Disk (L)ocation: I = Internal, X = External, - = N/A
(T)echnology: S = SATA, F = Fibre Channel, E = Enterprise Flash Drive, - = N/A
Symmetrix ID: 000XXXXXXXXX
Disk Hyper Usable Capacity Spare Coverage
------------------------ ------- ------------------- -----------------
Flgs Speed Size Total Total Avail
Grp Eng Cnt LT (RPM) (MB) Disk (%) (MB) Disk (%) Disk (%)
---- --- ---- ---- ----- ------- ---- --- ---------- ---- --- ---- ---
1 1 49 IF 10000 71503 48 98 54913950 1 2 1 100
2 1 66 IF 10000 34871 64 97 35708400 2 3 2 100
3 1 17 IE 0 47668 16 95 12203100 1 6 1 100
---- ---- --- ---------- ---- --- ---- ---
Total 132 128 98 102825450 4 3 4 100
Legend:
Disk (L)ocation: I = Internal, X = External, - = N/A
(T)echnology: S = SATA, F = Fibre Channel, E = Enterprise Flash Drive, - = N/A
The command C:\ symdisk -sid XXXX list -spindle -isspare states that NO matching disks were found:
Symmetrix ID : 000XXXXXXXXX
Cause
Architectural changes with VMAX3. Unisphere for VMAX is working as designed.
Resolution
The product is working as designed.
The num_spares field will always be set to 0 for HYPERMAX OS 5977 and later, as dedicated spare disks will no longer exist (spare capacity is used at the Internal Disk Group/Engine level instead). The "Spare Disk" is set to "N/A" for spindles belonging to Internal Disk Group/Engine Spindle Groups on HYPERMAX OS 5977, because there are no dedicated Spare Disks used under this design. Available Spare Capacity is managed at the Internal Disk Group/Engine Spindle Group level.
If the information is not reported by Solutions Enabler, it is not going to be reported by Unisphere for VMAX.
This information will be updated in the Solutions Enabler documentation:
The num_spares field will always be set to 0 for HYPERMAX OS 5977 and later, as dedicated spare disks will no longer exist (spare capacity is used at the Internal Disk Group/Engine level instead). The "Spare Disk" is set to "N/A" for spindles belonging to Internal Disk Group/Engine Spindle Groups on HYPERMAX OS 5977, because there are no dedicated Spare Disks used under this design. Available Spare Capacity is managed at the Internal Disk Group/Engine Spindle Group level.
If the information is not reported by Solutions Enabler, it is not going to be reported by Unisphere for VMAX.
This information will be updated in the Solutions Enabler documentation:
"Dedicated spare disks are not reported for arrays running HYPERMAX OS 5977 or above. For arrays running HYPERMAX OS 5977 or above, spare coverage information is reported at the Disk Group/Engine Spindle Group level. The symdisk list -dskgrp_summary -by_engine CLI display provides this information and is described in the Solutions Enabler Array Management CLI User Guide".
Article Properties
Affected Product
Solutions Enabler
Product
Solutions Enabler, Symmetrix VMAX/VMAX 20K, Unisphere for VMAX, VMAX3 Series
Last Published Date
27 May 2024
Version
4
Article Type
Solution