RE: move data to new disk

Rhys wrote: > But it is a Hardware Raid 5 Volume using Sun Hardware Raid card. > In Solaris is only see this is a big size Hard disk. > > Rhys > Art S. Kagel responded: > There's no excusable or defendable reason to use RAID5: But, Art, do you really feel that way? > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! > NO RAID5!! NO RAID5!! NO RAID5!! NO RAID5!! I'm sensing some ambiguity... Actually, Rhys, you may have noticed a lot of antipathy towards RAID 5 on this list. Art used to make it a nearly quarterly event to rant about RAID 5. Here is a link to one version: http://groups.google.com/group/comp.databases.informix/tree/browse_frm/thread/b17ac9b1d1beed8e/7b9b0fefd69dd1b2?rnum=1&q=raid5&_done=%2Fgroup%2Fcomp.databases.informix%2Fbrowse_frm%2Fthread%2Fb17ac9b1d1beed8e%2F7b9b0fefd69dd1b2%3Fq%3Draid5%26rnum%3D2%26#doc_7b9b0fefd69dd1b2 Same link shortened: http://tinyurl.com/92c6e However, despite the popularity of RAID 5 in some areas due to its low cost, many database and systems administrators despise it on technical grounds, not just here in this group. The reasons boil down to slow performance, increased probability of disk failure, and higher risk of data loss. These are the sort of things we tend to avoid. Meanwhile, Art, aren't we due for another detailed RAID 5 rant, anyway? Sincerely, Christopher Coleman Steering Committee President Kansas City Informix Users Group www.iiug.org/kciug Database Analyst Pharmacy Division Mediware Information Systems, Inc.