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>