Home
| Calendar
| Mail Lists
| List Archives
| Desktop SIG
| Hardware Hacking SIG
Wiki | Flickr | PicasaWeb | Video | Maps & Directions | Installfests | Keysignings Linux Cafe | Meeting Notes | Linux Links | Bling | About BLU |
On May 11, 2010, at 1:41 PM, Dave Peters wrote: > > We have a MD3000i (15 x 450GB 15K rpm) and MD1000 (15 x 1TB 7.2 RPM) joined together. How many Raid Group and LUN should I create for the best performance? 15K RPM disk will be used for Database Server and 7.2 RPM disk group will be used as Web Server? > Any suggestion? Maximum spindle distribution = maximum performance (usually), so glom the 15x450GB into a single striped set (RAID 0) and the 15x1TB into a single striped set (also RAID 0). Your reliability will suck. Each stripe set has 15 points of failure with zero redundancy. For redundancy and performance, I would set up 14 disks from each set in a RAID 1+0 with 1 hot spare. Although... I have to wonder... why do you have 15TB of disk for your web server but "only" 7TB for your database? --Rich P.
BLU is a member of BostonUserGroups | |
We also thank MIT for the use of their facilities. |