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From: Bill Hudacek <bill.hudacek@gmail.com>
To: mdraid <linux-raid@vger.kernel.org>
Subject: Question: RAID cabinet for home use
Date: Mon, 21 Jun 2021 17:11:08 -0400	[thread overview]
Message-ID: <03ca5974-60ed-d596-7eff-cac44f4a6d62@gmail.com> (raw)

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



             reply	other threads:[~2021-06-21 21:11 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-21 21:11 Bill Hudacek [this message]
     [not found] ` <CAAMCDedp11LuFuqV15NTPWv0wpCSvsp+VHPBBYN0euegm=5_Bg@mail.gmail.com>
2021-06-22 13:56   ` Question: RAID cabinet for home use (vs "Backplane/Cage/Mobile Rack"?) Bill Hudacek
2021-06-23 17:22 ` Question: RAID cabinet for home use John Stoffel
2021-06-23 20:14   ` antlists
     [not found]     ` <CAAMCDedHYKqBDfTysU=-CtxRMVpftPK1+crewRM2yuTDDq653A@mail.gmail.com>
2021-06-23 20:53       ` Roger Heflin
2021-06-24 16:42         ` John Stoffel
2021-06-25 20:04           ` Mark Wagner
2021-06-25 22:09             ` Ram Ramesh
2021-06-27 14:06             ` John Stoffel
2021-06-24 16:39     ` John Stoffel
2021-06-26 17:56     ` antlists

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