Hey all,
I am in need of replacing a faulty 4tb drive in my SAS NAS.
It needs to be a 4tb SAS drive.
There are many good deals on ebay for used 4tb drives.
What should I get to eventually replace all 6 of my 4tb SAS drives?
My Current Drives:
X477_SMEGX04TA07
ST4000NM0023
ST4000NM0023
ST4000NM0023 (faulty)
ST4000NM0023
X477_SMEGX04TA07
I’m currently debating between getting
Seagate 4TB 7.2K SAS 6Gb ST4000NM0023 Constellation ES.3 NetApp 108-00315-A0
or
Seagate Enterprise 4TB 7.2K 12G 3.5" SAS HDD ST4000NM0025 1V4207-037
or
Is there better 4tb SAS drives than segate? (HGST, WD, Toshiba, Dell)?
(Assuming SAME price for 4tb SAS drive)
Thoughts?
Thanks for the help!
(I should probably order a replacement asap…)
Edit: the for all the replies. So y’all agree Seagate is the best option ?


One is 6gb sas and the other is 12gb.
You probably won’t notice a difference
Honestly, are there any HDDs that can really reach 6gb/s speeds? I haven’t seen any that could reach 3gb/s. My current array is all running on SATA-2 backplanes, but with 8 drives in the raid it clocks out at 460MB/s sustained (bytes, not bits). Considering my previous NAS could barely reach 70MB/s on a 6-disk array, I was quite pleased with the new setup.
Imagine a disk shelf of 24 drives being connected by a pair of sas loops. You’d want the faster speeds then. It’s not about individual drives.
12gbps could be useful if you use port expanders to put dozens of drives on the same port, but without a port expander you’re right you wouldn’t saturate the 6gbps channel.