Date: Tue, 03 Mar 1998 13:08:48 -0800 (PST) From: Simon Shapiro <shimon@simon-shapiro.org> To: Wilko Bulte <wilko@yedi.iaf.nl> Cc: grog@lemis.com, hackers@FreeBSD.ORG, blkirk@float.eli.net, jdn@acp.qiv.com, tlambert@primenet.com, sbabkin@dcn.att.com Subject: Re: SCSI Bus redundancy... Message-ID: <XFMail.980303130848.shimon@simon-shapiro.org> In-Reply-To: <199803031816.TAA01286@yedi.iaf.nl>
next in thread | previous in thread | raw e-mail | index | archive | help
On 03-Mar-98 Wilko Bulte wrote:
> As Simon Shapiro wrote...
>>
>> On 02-Mar-98 Wilko Bulte wrote:
...
>> > 'Not everything that can be done should be done'
>>
>> Right!!!
>
> You must have tried it ;-)
I expanded this statement (a favorite of mine) in my mind to cover a wide
range of social, political, and interpersonal subjects.
> HP has something like this, but with a different implementation, I think
> it is called AutoRaid (?). They use RAID5 for 'cool' data and RAID1 for
> 'hot' data. This gives a nice compromise between cost (RAID1 is $$) and
> RAID5 (slower, especially on writes). They migrate between the raid
> levels
> based on data usage patterns.
Check out {sendero,nomis}.simon-shapiro.org. I have RAID-1 on the boot
images, RAID-5 on data I care about, /usr/obj and such on RAID-0. Sonme of
these arrays are actually shared between nomis and sendero. Hard to tell
which is which.
Migration happens using human prowess and the all powerful ``find . | cpio
-dump'' tool.
Simon
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?XFMail.980303130848.shimon>