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thanks for Nik, Bjoern and Nicolas.
i want to ask again, if i want to configure 48 disk, how many virtual disk can create in 48 disk, and how many spare ideal should be prepare in one virtual disk?
and when i know how many disk should i make for the spare because i have no reference(s) about it.
i configure storagetek 2540 m2 with A5C8 firmware.
Edited by: 952840 on Dec 27, 2012 4:41 AM
Edited by: 952840 on Dec 27, 2012 4:51 AM
A spare drive is not dedicated to a vdisk, it is global to the array. A guideline for the spare is to have 1 hot spare for every 30 drives (per drive type). For example, if a storage array contains 20 SATA drives and 60 FC drives, there should be a minimum of 1 SATA hot spare and 2 FC hot spares. As far as I know, you can have only 6 or 7 drives in a Vdisk for the 2500-M2 and for RAID 0 or 1, and a maximum of 30 drives in a Vdisk for all the other RAID levels.
One drive can only be in one Vdisk at a time.
With these information, you should be able to configure the array as your needs.