[mythtv-users] 2 TB Hard Drive Recommendations

Andre mythtv-list at dinkum.org.uk
Mon Dec 6 15:54:34 UTC 2010

On 6 Dec 2010, at 15:18, Ian Clark wrote:

> On 5 December 2010 21:18, jmk <jmk at foofus.net> wrote:
>> Hi,
>> I'm planning to merge my file server (4x250GB mdadm RAID5) with my
>> MythTV backend. I'd like to buy 3 2TB drives for a RAID5 setup to house
>> recordings, videos, music, and personal files. I thought this would be a
>> simple purchase and the WD20EARS initially looked like a good buy.
>> Unfortunately, a bit of reading suggests there are all sorts of issues
>> with recent drives I should take into consideration (e.g. 4K sectors,
>> TLER).
>> Does anyone have some positive experience/recommendations for 2 TB (or
>> at least 1.5 TB) drives and mdadm-based RAIDs?
> I've got 3x2TB in a RAID 5 config in a NetBSD box that work just fine.
> A friend has the same setup under linux.
> They're all Hitachi's.

Sounds good but I have a 1TB Hitachi that normally works well, is reliable if hot and noisier than seven other drives put together!

However connect it to an Adaptec 1208A sata controller (sil_24 module), reboot and the partition table will magically disappear! It can be replaced with dd and all is well, I have a backup of it handy and a big notice on the hot plug array (do not put Hitachi drive in these two bays). 

Weird and worrying.

I haven't had much luck lately with storage :-(

> In fact most of my HDs are Hitachi/IBM, can't recommend them enough.
> My current raid has been on 24x7 since I built it pretty much. It
> replaced a 4x500G RAID array that was about 3 years old. Those drives
> are all still working too. (2 of them are now my Myth storage drives,
> just checked and they're reporting a power on time of 22146 hours,
> which is about 2.5 years.)
> Hitachi/IBM had problems about 10-12 years ago with the infamous
> "Deathstar"s, but since those days have been absolutely rock solid in
> my experience.
> As I'm starting to sound like a HGST rep I'll shut up now though. :)
> Cheers,
> Ian
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