My server will be handling numerous simultaneous flash 5% (3mb or less) video/music streams and 95% (less than 500kb) image views
Which is better in terms of real-world performance (speed and dependability, not capacity)?
1. 3x Hitachi 7k500 SATA (http://www.storagereview.com/HDS725050KLA360.sr) in RAID0
using the onboard RAID controller of IP35 Pro
2. 4x Hitachi 7k500 SATA (http://www.storagereview.com/HDS725050KLA360.sr) in RAID5
using the onboard RAID controller of IP35 Pro
3. 1x Hitachi 15k300 SCSI (http://www.hitachigst.com/portal/site/en/menuitem.f7da5b80da420cb0483bad24eac4f0a0/)
with LSI21320-IS (in a 32bit PCI slot)
Does RAID improve seek time? If not, considering the files my server will be handling, will the seek times of the SATA RAID configurations be the bottleneck? What kind of transfer rates will the SATA Hitachi's in RAID achieve? How much do these transfer rates play in the overall time?
Thank you for the help!
Which is better in terms of real-world performance (speed and dependability, not capacity)?
1. 3x Hitachi 7k500 SATA (http://www.storagereview.com/HDS725050KLA360.sr) in RAID0
using the onboard RAID controller of IP35 Pro
2. 4x Hitachi 7k500 SATA (http://www.storagereview.com/HDS725050KLA360.sr) in RAID5
using the onboard RAID controller of IP35 Pro
3. 1x Hitachi 15k300 SCSI (http://www.hitachigst.com/portal/site/en/menuitem.f7da5b80da420cb0483bad24eac4f0a0/)
with LSI21320-IS (in a 32bit PCI slot)
Does RAID improve seek time? If not, considering the files my server will be handling, will the seek times of the SATA RAID configurations be the bottleneck? What kind of transfer rates will the SATA Hitachi's in RAID achieve? How much do these transfer rates play in the overall time?
Thank you for the help!