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Raid 10

S

Sparky

2[H]4U
Joined
Mar 9, 2000
Messages
3,371
Is it possible to have Raid 10 using 2x 512Gb ssd (stripe) and 2x 750Gb hdd (mirror) or does it need all exact same?
 
Possible? Most likely. Many software based solutions don't care about what the drives are.

Worthwhile? Most likely not. You'll likely see performance penalties, though I'm just guessing as I don't have any actual experience. You'll probably be better off running them as separate drives and running some sort of daily backup software like Acronis.
 
Sparky said:
Is it possible to have Raid 10 using 2x 512Gb ssd (stripe) and 2x 750Gb hdd (mirror) or does it need all exact same?
Click to expand...
you can but everything will run at the speed of the 750GB HDDs.....

What you want is a RAID 0 of the SSDs with a backup/clone to the HDDs.

The best option would be to do a staggered clone/back up. 1 day to one drive and day 2 to drive 2 and wipe and re-update every day with 2 days of clones/backups.

thats the best option without buggering everything up. Granted there are better options.
 
It should work.

I run (4) 120gb SATA2 drives in RAID 10. Performance is a bit above a single drive, but not as fast as RAID 0.

If you cannot get it to work, you can write an XCOPY batch file with the switches /C /S /D /Y. Those switches will copy the subfolders/files the first run, then only copy and overwrite any updated files there after. The first run will take a little time, but it will be a shorted run thereafter.

Make multiple copies of the XCOPY batch file, change the destination drives to suit your needs. Like destination F: on one day, G: for the next, K: for the day after, etc, etc.

You then can set your task manager to run those specific XCOPY batch files on certain times and days. ...automated backup.
 
4330thgink said:
It should work.

I run (4) 120gb SATA2 drives in RAID 10. Performance is a bit above a single drive, but not as fast as RAID 0.

If you cannot get it to work, you can write an XCOPY batch file with the switches /C /S /D /Y. Those switches will copy the subfolders/files the first run, then only copy and overwrite any updated files there after. The first run will take a little time, but it will be a shorted run thereafter.

Make multiple copies of the XCOPY batch file, change the destination drives to suit your needs. Like destination F: on one day, G: for the next, K: for the day after, etc, etc.

You then can set your task manager to run those specific XCOPY batch files on certain times and days. ...automated backup.
Click to expand...
RAID 10 is very much faster than RAID 0...... But not when you blend SSDs and HDDs.....

play with RAID calcs to get a feel for how they work

Free RAID Calculator - Caclulate RAID Array Capacity and Fault Tolerance.
RAID Calculator
RAID calculator - online array characteristics estimation tool
 
You may not want to RAID the SSDs anyways, supposedly, after a period of time, this will slow down their performance as opposed to just being separate.
 
yea that has to be pre trim OS support days. I knwo plenty of people RAIDing SSDs over the last 5-7 years
 
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