locating a disk

Michael

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Sep 18, 2012, 1:39:52 PM9/18/12

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Hi,

I find it very hard to locate which slot a certain/failed disk is
located in, is there not some way to flash the LED light on the
drive/array to locate the drive just like a server can be located by
turning on the "locator LED"?

I am using Solaris 11 on a T2000 via two LSI/SAS/SATA HBAs and 16 direct
connected drives.

Michael

John D Groenveld

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Sep 18, 2012, 1:46:13 PM9/18/12

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In article <abrpv9...@mid.individual.net>,

Michael <michael_...@yahoo.com> wrote:
>I find it very hard to locate which slot a certain/failed disk is
>located in, is there not some way to flash the LED light on the
>drive/array to locate the drive just like a server can be located by
>turning on the "locator LED"?

Assuming the drive can still be interrogated by format(1M),
try this old hack:
format -> analyze -> read

John
groe...@acm.org

Doug McIntyre

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Sep 18, 2012, 3:03:14 PM9/18/12

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Thats one function the storage vendor typically provides, rather than
the OS. And for many of these, they embed pictures of the shelf used,
and the location of each disk within so they can light up where the
bad disk is off a map.

You don't say what kind of disk shelf you have, but some of the Sun
branded ones have this function built in.

If this is a generic shelf, then you'll have to keep track of things yourself.

Ie. for our built up storage boxes, we keep a spreadsheet with all the
drive WWNs when we build it. When a drive goes out, we update the spreadsheet.

Michael

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Sep 18, 2012, 6:14:03 PM9/18/12

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Hi,

On 09/18/12 09:03 PM, Doug McIntyre wrote:
> Michael<michael_...@yahoo.com> writes:
>> I find it very hard to locate which slot a certain/failed disk is
>> located in, is there not some way to flash the LED light on the
>> drive/array to locate the drive just like a server can be located by
>> turning on the "locator LED"?
>
>> I am using Solaris 11 on a T2000 via two LSI/SAS/SATA HBAs and 16 direct
>> connected drives.
>
> Thats one function the storage vendor typically provides, rather than
> the OS. And for many of these, they embed pictures of the shelf used,
> and the location of each disk within so they can light up where the
> bad disk is off a map.
>
> You don't say what kind of disk shelf you have, but some of the Sun
> branded ones have this function built in.
>

Its two StarDomes.

http://www.stardom.com.tw/sohotank_st8_spec.html

> If this is a generic shelf, then you'll have to keep track of things yourself.
>

right I was hoping for some progress in this, but paper is always good
works when light are out aswell :)

I though that there was some standard I/F from the HBA that did this.

> Ie. for our built up storage boxes, we keep a spreadsheet with all the
> drive WWNs when we build it. When a drive goes out, we update the spreadsheet.
>
>
>
>

/michael

ITguy

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Sep 19, 2012, 6:02:51 PM9/19/12

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> I find it very hard to locate which slot a certain/failed disk is
>
> located in, is there not some way to flash the LED light on the
>
> drive/array to locate the drive just like a server can be located by
>
> turning on the "locator LED"?

If you spin down the drive with "cfgadm -c unconfigure <drive>", does the LED status light go out?

Richard B. Gilbert

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Sep 19, 2012, 6:23:43 PM9/19/12

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DEC and later Compaq made disk systems using SCSI disks. The drives all
had an LED on the front panel that, when lit, meant that there was a
problem. So it certainly CAN be done. If it's not done, look at the
economics! "Follow the money!"

Ian Collins

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Sep 19, 2012, 6:52:39 PM9/19/12

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John's suggestion works for drives that format can see. For those it
can't, running a zpool scrub will active ate the status LEDs on all the
other drives!

--
Ian Collins

Cydrome Leader

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Sep 21, 2012, 2:23:54 PM9/21/12

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sadly, I think HP may be the last name in the game with disk enclosures
with meaningful indicator lights. Bright orange = failed. Blue = drive
selected by array software for location, green = doing stuff.

Even Netapp stuff seems to lack a fault LED of any sort, and they rip you
off pretty good, so it's not like the can't pick to demand enclosures with
14 extra LEDs installed.

Why people wimp out on stuff like this really bugs me.

Paroksha

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Oct 3, 2012, 4:36:15 AM10/3/12

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if the disk is failed and u r planning to remove/replace it here is the easy way...

note down the c#t#D# no of failed disk
#cfgadm -al ..... run this cmd

# cfgadm -c unconfigure <output for ur command>
(cfgadm -c unconfigure c#::dsk/c#t#d#)
(c#::dsk/c#t#d# u will get this from cfgadm -al cmd)

once u execute this cmd th HDD BLUE LED will glow for most servers.
u can easily find the faulty HDD.