Hi Sebastian,
thanks, this is a great chart - will keep it bookmarked :)
I usually do "tell" NetApp when I'm doing maintenance, but since my last OnTap update with serveral TOs and GBs I had 4 cases open and got three calls (which is great support, btw), so I figured noone is actually reading what you tell them via autosupport.doit :)
bye,
Alexander Griesser
System-Administrator
ANEXIA Internetdienstleistungs GmbH
Telefon: +43-463-208501-320
Telefax: +43-463-208501-500
E-Mail: ag@anexia.at
Web: http://www.anexia.at
Anschrift Hauptsitz Klagenfurt: Feldkirchnerstraße 140, 9020 Klagenfurt
Geschäftsführer: Alexander Windbichler
Firmenbuch: FN 289918a | Gerichtsstand: Klagenfurt | UID-Nummer: AT U63216601
Von: Sebastian Goetze [mailto:spgoetze@gmail.com]
Gesendet: Mittwoch, 06. Februar 2013 22:15
An: Alexander Griesser
Cc: toasters@teaparty.net
Betreff: Re: Minimum PSUs required for DS4243 with 24x SAS
Hi Alexander,
You remember correctly, here's what should happen:
Type | PSUs | Expected Behavior |
SAS | 4 | Normal operation. All disks will spin up at the same time. |
3 | Staggered disk spin-up. Six drives per column (four columns) will spin up at a time with 12-second intervals between each column. | |
2 | Staggered disk spin-up as above. | |
1 | The shelf will still function but with several issues. Any drives that are currently powered up when reduced to one PSU will continue to function. From a cold boot, some drives (undetermined) will not spin up due to a lack of power once a certain number of drives have spun up. This is an unsupported operating condition. | |
SATA | 4 | Normal operation. All disks will spin up at the same time. |
3 | Staggered disk spin-up. Six drives per column (four columns) will spin up at a time with 12-second intervals between each column. | |
2 | Staggered disk spin-up as above. | |
1 | Staggered disk spin-up with one difference. The first three columns, six disks each, will spin up with the normal 12-second interval. The fourth column will spin up five of six disk drives with the sixth drive (bay 23) spinning up 12 seconds later. |
Nevertheless I'd also expect an AutoSupport, since you *do* want a replacement PSU if one actually breaks.
You might think about sending NetApp a
options autosupport.doit "We're going to do some shelf maintenance"
... ;-)
Greetings from up North (Nordfriesland)
Sebastian
On 06.02.2013 19:43, Alexander Griesser wrote:
Hey there,
we were just re-cabling some of the power cords on our DS4243 shelfs with 4 PSUs and 24x 15k 600GB SAS.
When I power down one of the 4 available PSUs in the DS4243, I get the following messages in system log and autosupports are generated:
Wed Feb 6 19:28:15 CET [barricade:ses.status.psError:CRITICAL]: DS4243 (S/N SHJHU000000055F) shelf 2 on channel 0a power error for Power supply 4: critical status; power supply failed. This module is on the rear side of the shelf, at the bottom right.
Wed Feb 6 19:28:15 CET [barricade:ses.status.volError:CRITICAL]: DS4243 (S/N SHJHU000000055F) shelf 2 on channel 0a voltage error for Voltage sensor 8: unrecoverable error. This module is on the rear side of the shelf, at the lower right, on the power supply.
Wed Feb 6 19:28:15 CET [barricade:ses.psu.powerReqError:CRITICAL]: Not enough power supplies are present in channel 0a disk shelf 2 to satisfy disk drive and shelf power requirements.
Wed Feb 6 19:28:15 CET [barricade:monitor.shelf.fault:CRITICAL]: Fault reported on disk storage shelf attached to channel 0a. Please check fans, power supplies, disks, and temperature sensors.
Wed Feb 6 19:28:15 CET [barricade:callhome.shlf.fault:error]: Call home for SHELF_FAULT
Wed Feb 6 19:28:15 CET [barricade:monitor.shelf.configError:CRITICAL]: Enclosure services has detected an error in access to shelves or shelf configuration 0a.
Wed Feb 6 19:28:15 CET [barricade:callhome.config:warning]: Call home for CONFIGURATION_ERROR
Wed Feb 6 19:29:00 CET [barricade:monitor.globalStatus.critical:CRITICAL]: Disk shelf fault. Disk shelf configuration error.
Wed Feb 6 19:29:11 CET [barricade:ses.status.psInfo:info]: DS4243 (S/N SHJHU000000055F) shelf 2 on channel 0a power supply information for Power supply 4: normal status.
Wed Feb 6 19:29:11 CET [barricade:ses.status.volInfo:info]: DS4243 (S/N SHJHU000000055F) shelf 2 on channel 0a voltage information for Voltage sensor 8: normal status.
Wed Feb 6 19:29:11 CET [barricade:monitor.shelf.fault.ok:info]: Fault previously reported on disk storage shelf attached to channel 0a has been corrected.
Wed Feb 6 19:29:11 CET [barricade:monitor.shelf.configError.ok:info]: Enclosure services-detected configuration error has been corrected on channel 0a.
Wed Feb 6 19:30:00 CET [barricade:monitor.globalStatus.ok:info]: The system's global status is normal.
Why exactly does it think that there are not enough power supplies present if I just shut down one of them? I was under the assumption that a full SAS shelf can work with 2 PSUs and a full SATA shelf can work with 1 PSU without problems. Am I wrong?
Nothing happend to the filers, no takeover, no errors, etc., but the message in the logs puzzles me.
Thanks && bye,
Alexander Griesser
System-Administrator
ANEXIA Internetdienstleistungs GmbH
Telefon: +43-463-208501-320
Telefax: +43-463-208501-500
E-Mail: ag@anexia.at
Web: http://www.anexia.at
Anschrift Hauptsitz Klagenfurt: Feldkirchnerstraße 140, 9020 Klagenfurt
Geschäftsführer: Alexander Windbichler
Firmenbuch: FN 289918a | Gerichtsstand: Klagenfurt | UID-Nummer: AT U63216601
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