1. P35 mainboard ICH9R controller
2. 4x Raptors 150
3. 1x WD 750
5. all 5 HDD on ICH9R
6. 8 GB Ram
7. XP x64 Pro
8. C2D E6850
this workstation will be used for graphic design, priority is performance under DTP applications as Photoshop and CorelDRAW, opening big files with many pages including lots of effects and very high resolution images and on the fly image editing etc. Those applications create a scratch file no matter how much ram there is and they make heavy use of that scratch file. for example a 500mb psd file while working on it creates a 6.5 Gb scratch (also called swap) file in three minutes, the more you work on it the bigger it becomes ...... And another critical point is the saving/writing and opening/reading speed of those big files ......
Photoshop also is incapable of seeing more than 3gb ram
So, i thought after consideration of various schemes to set it up like this:
1. 4xRaptors 150 in a single Raid-0 volume of two "virtual" arrays, one of 40 Gb for the scratch files and the rest storage space for the work files
2. OS, Program files and first stage backup/synchro of the work files in the 750 sata IDE
3. make a ramdisk of 4-6 gb ram for applications to save as first priority their scratch file (when full, save then to the 40gb raid virtual array)
any better ideas maybe?
What i am sceptical about with this scheme, as every scheme had its drawback, is that scratch file and work files will be on the same physical drive, the single 4disk Raid-0 array.
Now what puzzles is that,
I did a test with Photoshop opening a 500mb file (using ramdisk as scratch file saving area) and saving from/in the raid array and from/in the single IDE sata drive and i didnt feel or measured a speed difference ..... whats the deal with this ? ......
Any input appreciated