Re: [SLUG] (now) File Systems -- recovery with only a few sector errors ...

From: Chad Perrin (perrin@apotheon.com)
Date: Tue Sep 14 2004 - 17:45:11 EDT


Bryan J. Smith wrote:

> **NOTE: For example, 3Ware Escalade cards reserve blocks on ATA discs
> and do sector remapping automatically (assuming RAID-1, RAID-0+1 or
> RAID-5, where there is a copy/parity of the sector lost). "FRAID" cards
> typically do not offer this, and do it in 100% software if they do.
> Standalone ATA discs do not offer remapping, so it is up to the OS to
> mark blocks bad. SCSI can do sector remapping inherently, but unless it
> is RAID with a copy/parity, automatic recovery of data is not certain.

When you say "standalone ATA", do you mean drives that are not part of a
RAID? If so, I understand what you're saying. If not, I'd like some
clarification.
-----------------------------------------------------------------------
This list is provided as an unmoderated internet service by Networked
Knowledge Systems (NKS). Views and opinions expressed in messages
posted are those of the author and do not necessarily reflect the
official policy or position of NKS or any of its employees.



This archive was generated by hypermail 2.1.3 : Fri Aug 01 2014 - 17:38:07 EDT