Thread (5 messages) 5 messages, 3 authors, 2021-06-26

Question: RAID cabinet for home use

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From: Bill Hudacek <hidden>
Date: 2021-06-21 21:11:13

My 2021 Sans Digital TR5UT+B held 5 SATA disks. I had an eSATA connection to the host box. It went belly-up a few weeks ago.

After some careful searching, a good replacement seemed to be the Oyen Digital Mobius 3R5-EB3-M. Found it for about $300USD.

It was plug-and-play replace. Drives were being addressed by UUID in Fedora so no issues at all. It came right up.

However, smart reporting looks horrible even compared to the TR5UT+B (which had its own issues).

Here's what the TR5UT+B (old cabinet) reported for one disk in the unit (just the header section of smartctl -a):

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Red
Device Model:     WDC WD20EFRX-68EUZN0
Serial Number:    WD-WCC4M6HX8XCR
Firmware Version: 0957
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]

Here's what the Mobius reports now for the same disk:

=== START OF INFORMATION SECTION ===
Device Model:     Mobius  DISK1
Serial Number:    WD-WCC4M6HX8XCR
Firmware Version: 0962
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Size:      512 bytes logical/physical
Device is:        Not in smartctl database [for details use: -P showall]

The disk model is gone. The firmware version is wrong (cabinet instead of disk?!). I imagine firmware updates are impossible here.

The rest of it is unimpressive, too. No SCT (TLER) at all - not just ERC, but SCT Status, SCT Feature Control, SCT Data Table are all missing too.

All the disks in the cabinet are WD20EFRX-68EUZN0. So I believe they have SCT/TLER.

What RAID cabinets would be a better alternative? I have 5 drives but an 8-bay cabinet would work too.

Obviously, SMART pass-through would be 'nice'. But so would SCT (ERC).

-- 

Kind Regards,

Bill Hudacek
IT Architect
Currently Un-Attached, free & independent

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