this post was submitted on 03 Jan 2026
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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 ?

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[–] non_burglar@lemmy.world 6 points 1 week ago

One is sas6gb/s and the other is sas12gb/s, as someone else pointed out.

You will be hard-pressed to make those drives make use of sas12g. I have them and I've beaten them up with various workloads, but I could not justify their use beside sata3. Cost-for-cost, even accounting for the better SAS ncq and smart data, spinning rust at those transfer speeds only make sense if you have the demand of many hundred users or more, which homelab almost certainly isn't.

The reason not to get them is that they draw substantially more power per disk than sata3 disks.