This post is more than 5 years old
82 Posts
1
2244
VMax disk level info.
Hi - can anyone help one below queires on vmax
1. How do i know how many FC/SSD/SATA disks are installed and its physical addressess.
2. How do i know how many that how many vdev/tdev's are on each hdd and entire Storage pool.
3. How to i covert tracks to GBs.
SKT2
1.3K Posts
0
January 15th, 2011 06:00
Symmetrix systems use the following logical volume structure: ? Each logical volume has n cylinders ? Each cylinder has 15 tracks (heads) ? Each track has 128 blocks of 512 bytes Therefore, a Symmetrix logical volume with n cylinders has a usable block capacity of: n * 15 * 128 n for each volume is defined during Symmetrix configuration. To calculate the size of the logical volume: Number of cylinders * heads * blocks * 512 (n * 15 * 128* 512) 128*512 is the 64KB mentioned on the other post
dynamox
1 Rookie
1 Rookie
•
20.4K Posts
1
January 4th, 2011 13:00
for 1 and 2 ..look at man pages for "symdisk" and "symcfg"
for 3, on DMX3/4/Vmax 1 track is 64k so multiply number of tracks by 64 and then devide by 1024 two times.
sauravrohilla
859 Posts
1
January 4th, 2011 14:00
Hi,
You can use the following command to check disk numbers, disk types and capacity:
C:\Documents and Settings\Administrator>symdisk list -sid 123 -dskgrp_summary
Symmetrix ID: 00019123456
Disk Group Disk Capacity
---------------------- ----------------------- --------------------------------
Speed Size Total Free Actual
Num Name Cnt Tech (RPM) (MB) (MB) (MB) (MB)
---------------------- ----------------------- --------------------------------
0 FC_600_GRP1_TDAT 250 FC 15000 279140 69785079 64127 69785079
1 SATA_DISK_GROUP_0* 20 SATA 7200 953870 19077394 7692916 19077394
2 FC_DISK_GROUP_002 62 FC 15000 418710 25960048 22314092 25960048
---------- ---------- ----------
Total 114822521 30071136 114822521
Legend:
(Tech)nology : SATA = SATA, FC = Fibre Channel, EFD = Enterprise Flash Drive
====================
2) To convert Tracks to GB:
1 track = 64 KB = 64 / 1024 /1024 to convert in GB.