QNAP drives

I have had issues with qnap NAS devices repeatedly and i was told to pick a drive off of there HCL that was in the "enterprise drive" category.

After finding one i thought would perform well, a velociraptor (wdc wd1000chtz), i bought four and put them into the NAS.  I have had to replace a few of these drives too and now i am being directed to WD Red drives.

my concern is, while the Red drives may be more reliable, they may not perform as well in the qnap.  Any thoughts there?

the raptor spins at 10k rpm and the red drive has intellipower rpm.  Do you experts think the performance will suffer with the slower red drives (WD10EFRX (Red NASware 3.0))?  Thanks!!!
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IKtechAuthor Commented:
Also it may be worth noting that i am using raid 10
Check exact drive model in QNAP compatibility guide.
QNAP is picky about fast wakeup from powersave.
You can come forward with full exact models of all pieces involved and I can look up for you.
Gerwin Jansen, EE MVETopic Advisor Commented:
Which QNAP device is this about?
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IKtechAuthor Commented:
i have two TS469-U and TS459-U+.

I have had issues with drives in both units and i used the raptor 2.5 inch drives for all four bays in each device.  Qnap support has told me to use "enterprise" or "NAS" drives.  The raptor is listed as an enterprise drive on their HCL but apparently just being on the HCL doesn't mean much.  I dealt with support on the drive failures and they told me to get a different drive even though the one i am using is on the HCL.

If i buy the red drives this will be the second time i have changed drives.  i am using the qnap devices with vmware as shared storage via iscsi and i would love it if these qnaps were more reliable.  it seems either one will have issues every couple of months.
Only NFS is on vmware HCL, though that should not cause problems with disks.
Gerwin Jansen, EE MVETopic Advisor Commented:
Since you're about to buy a set of red drives, I'd contact WD customer support upfront, explain the issues you have with raptors. Get them to guarantee you that the red drives don't have similar issues, if so you send them back and get a refund. It's their best NAS drive - they should support it.

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IKtechAuthor Commented:
i did some more research on wd red and it looks like it will be very slow when used with vmware (iscsi shared storage).

I was looking at solid state drives for those two qnaps...  Any experts have any suggestions  with qnap and ssd?  specifically used as an iscsi datastore?

I am nervous using SSD but at this point i want something reliable and fast.  Thoughts?

IKtechAuthor Commented:
decided not to go with red drives. Qnap confirmed the drives i have a supported and i may need to add iscsi multi pathing.
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