EVA two disk failure in the same RSS

noor Parkar_1 — Fri, 03 Apr 2015 01:30:51 GMT

HI,

The concept of RSS , disk group , Vdisk is clear.

but something i need to understand. Every one said , if two disk failed in the same RSS , there is data loss.

there is data loss only if following e.g 8 disk RSS group

another disk failure during reconstruction. then there is data loss.

not after disk reconstruction. am i right?

so after disk reconstruction, another disk may fail and there is no loss of data.

as i understand, after 1 disk failure, there is reconstruction within the same RSS first then disk levelling across all disk.

kindly clarify this point.

P.S. This thread has been moevd from Disk Array to Storage Area Networks (SAN) (Enterprise). - Hp Forum Moderator

Re: EVA two disk failure in the same RSS

Torsten. — Thu, 02 Apr 2015 11:07:41 GMT

Yes, after a disk failure the EVA is reconstructing the data to get fully redundant again, until there is no free space left.

Problem is a second failing disk in the same RSS while the reconstruct is still in progress. This may render the complete diskgroup unusable.