From: Sean (sean at domain binky.net)
Date: Wed 10 Jul 2002 - 22:27:05 IST
Chris Higgins wrote something:
{ On Wed, 10 Jul 2002 17:20:00 +0100
{ "John P. Looney" <valen at domain tuatha.org> wrote:
{
{ > On Wed, Jul 10, 2002 at 02:45:51PM +0100, Matthew French mentioned:
{ > > I presume that I need to run controller specific software to create
{ > > a hardware raid device. So if I ran mkraid, this would make it a
{ > > software raid device? This is on a Sun Ultra 3000, and I did not
{ > > check the available hardware before wiping off Solaris.
{ >
{ > Sun never do hardware raid. Their opinion is that your Ultra CPU's
{
{ I suppose that means that the
{ "Sun[tm] Hardware RAID Storage Systems Administration (ES-255)"
{ http://suned.sun.com/US/catalog/courses/ES-255.html - July 1, 2002 - 29 KB
{
{ course is spent hitting students over the head and getting them to
{ repeat 'software raid is better'
Hmm.... That course includes the T3 array...
Sun's T3 array:
9 disk array ( 9 x either (36 | 72 GB) ) per enclosure,
2 enclosures per unit => max of 18 x 72 GB = 1296 GB.
Hardware raid with raid level 0, 0+1 or 5
-- up to 1 GB memory cache in each enclosure
-- linux drivers available
t3 page:
http://www.sun.com/storage/t3es/index.html
linux multipath howto with t3's:
http://www.sun.com/storage/white-papers/red_hat_sunstoredge_overview.pdf
linux drivers:
http://open-projects.linuxcare.com/t3/
{
{ > are likely faster than any raid card, and better at doing RAID
{ > anyway. And any good Sun engineer will beat your with your SS3000's
{ > backplane if he catches you doing CPU intensive RAID like RAID 4/5.
{ >
{ > Stick with RAID 1+0. Your only man, when you have lots of cash.
{ >
{ > Kate
{ >
{ >
{ > --
{ > Irish Linux Users' Group: ilug at domain linux.ie
{ > http://www.linux.ie/mailman/listinfo/ilug for (un)subscription
{ > information. List maintainer: listmaster at domain linux.ie
{
{
{ --
{
{ Chris Higgins
{ Horizon Technical Services
{ e: chris.higgins at hts.horizon.ie
{ tel: +353-1-6204900
{ fax: +353-1-6204901
{
{ --
{ Irish Linux Users' Group: ilug at domain linux.ie
{ http://www.linux.ie/mailman/listinfo/ilug for (un)subscription information.
{ List maintainer: listmaster at domain linux.ie
Sean.
.
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