Re: Mirrored disks Vs duplexed logs

Sounds like you have a bad T500 systems we have had no problems with our system since it was purchased almost over a year ago.

Steve Lemme
DBA
MOTOROLA
>
> I both mirror my redo disks, and mirror the redos into two groups. Doing
> this both isolates from HW failure on a disk level (I am using HP-T500
> and disk related failures have been relatively high. i.e. controllers,
> disks, connections, etc.) and a logical failure (i.e. an SA runs fsck -y
> after a crash, or shutdown, and erases one of the sets).
>
> I have had my one and only experience where I had not mirrored my redos,
> but the disks were mirrored. The system crashed because of another
> hardware failure. The SA's tried bringing the box back up and were
> prompted to fsck the disk set where my only set of redos were. They ran
> fsck -y and promptly removed my redo logs. Of course there was no
> recovery. Also, my redos were erased on both sets of disks. We ALL
 

> -
> ERNST RENNER erenner_at_itthartford.com
 

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