On Monday 21 February 2005 08:34, Alvin Oga wrote: > for hw raid ... for 2 disks .. is it worth the $250 for the hw raid > card ?? Yes it is. :) > - if monitoring is important, which it is in a raid world, the > metrics you can monitor and watch is limited to the hardware > vendor's support > > - 3ware.com cards are "cheap", and you can get $20,000 hw raid > controllers too :-) I use 3ware with 3 disks (Raid5) and I'm very satisfied with this controller. It's supported out of the box, the driver is included in Linux kernels. 3ware has also a monitoring tool, which allows me to use a webbrowser to check the status and the logs. I also get email notification to multiple accounts when something is wrong. > > for hw raid .. > - stay away from onboard motherboard raid controllers > - i'd personally avoid highpoint and promise fastblah etc > > ( leaving only 3ware as the hw raid controllers for $300 range ) > > - even better, i'd avoid hw raid all together for lack > of proper monitoring > > for 2 disks ... i think its easy/faster/better with sw raid > - more monitoring capabilities and options SW raid was very slow in my case (using onboard SI3112 SATA chip), because only PIO mode worked reliably (at least in kernel 2.4.25). When I turned on DMA I got IO errors. :( When switching from kernel 2.4 to 2.6 SW raid stopped working, because the device changed from /dev/md0 to /dev/sda1 for the first partition... and I wasn't aware of that. So, that was the point where I scrapped SW Raid and got a proper RAID controller. Cheers Arne -- Arne Götje (高盛華) <20030910antispam@gmx.net> (Spam catcher. Address might change in future!) PGP/GnuPG key: 1024D/685D1E8C Fingerprint: 2056 F6B7 DEA8 B478 311F 1C34 6E9F D06E 685D 1E8C Key available at wwwkeys.pgp.net. Encrypted e-mail preferred.
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