Supermicro 4u 24 bay chassis with SAS2 expander
- Thread starter Mark
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this my understanding:Something else I remembered. You CAN get a SATA drive to show a solid blue light when connected. Just overheat the drive until the SMART status registers the failure.
(One of my disks did that. I don't know why it showed blue instead of red, but it did.)
your HD drives solid blue Activity LED. it screamed loud!!
RED (including BLUE <- enable or disable activity status) LEDS are control via i2c or sgpio. current HBA and Hardware RAID drives LEDs via i2c (hardly some included sgpio pins). very old one only support sgpio.
normally BLUE got driven via HD activity line.
This is incorrect. Locate is a quick flash, a failed disk is solid red, and hotspare and/or rebuilding disk is a slow flash. These are the possible states on the backplane; different RAID controllers might map different drive states to different LED flash periods, though. I'm fairly sure this is in the backplane manual, but here is a video I randomly found on YouTube for reference:
I have an M1015 and an H200; both work with ledctl and this backplane (SAS2 model). Not sure why it doesn't work for you, but it definitely should (no reason why it wouldn't).
Through an HBA in IT mode (or IR)? It likely won't monitor SMART and turn on the failure LED; that's for the OS to do as far as the HBA is concerned. The disk was probably hanging on IO and the activity LED was solid because, technically, there was "constant" (albeit hung) IO. A RAID card likely would have set the failure state because it would have dropped the drive out of the array it was in.Something else I remembered. You CAN get a SATA drive to show a solid blue light when connected. Just overheat the drive until the SMART status registers the failure.
(One of my disks did that. I don't know why it showed blue instead of red, but it did.)
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you are correct : locate is solid quick flashing red. failed is solid red
ledctl is Not working on my m1015 and H200 with sas2 expander, I am running centos 7.X
based on the manpage, ledctl should work. on the other side of story in manpage: ledctl is not guaranteed 100%work.
not hard to do on bash or python to replace ledctl that fix my issue
.IR and IT does not monitor SMART, I run script in crond to verify SMART, and set failed solid red LED. I am using sg_ses.
basically, the script check on first expander under live /sys mounting, and set failed command that based on bays/trays mapping.
exactly, solid Acitivity led is "hang" I/O command process on the OS side.
hardware Raid will set solid failed red LED on failing/failed drive.
HBA: Dell Perc H200 cross-flashed with LSI P19 IT firmware.
Bootloader: XPEnoboot_DS3615xs_5.1-5022.3
OS: DSM 5.1-5022 Update 4
on my situation, the SM case from ebay came with 3 sideband-minisas. this is required for HW Raid to control backplane front led as I know.
on my understanding HBA, i2c command must be sent through the card by using ledctl.
this should work, but not on me :|. or I missed something.
my last approach is using sg_ses that send scsi command to expander backplane through minisas (do not need sidebands). I am good by wrapping sg_ses and smartctl to set failed or turn off led.
I am going to test ledctl on direct minisas without expander with sideband for my current (still building ) proxmox with M1015.
sg_ses works that I already tested. need time to verify ledctl since focusing to finish the build and configuring OVS and other proxmox configurations.
I have one of these arriving today. I'm a bit confused as to the MB that will fit in this chassis. The manual doesn't mention size or form factor. Does this have standard PSU connectors? What about the front panel connectors? Are they standard or proprietary? Sorry, I'm a noobe, any guidance is greatly appreciated.
I got my unit yesterday and specified a SAS2 backplane in my order. I won't be able to hook the unit up for another week or so but couldn't find a way to verify the SAS2 backplane without taking it out. I might need a tilt mirror unless someone has a trick to seeing the model #.
I'll have a look when I get home thanks! Maybe a picture I can upload later as well for reference.
The first one worked out so well I just ordered another. This one includes a X8DTE-F motherboard and 2 900w PSU's. Total was about the same as the first so the MB is a bonus. Delivered price was $308. I'll have all the storage space I need for the foreseeable future (yea, right, lol)
I'v been looking to order one of these suckers. But shipping / customs to .eu (.dk) ... ouch!
Anyway, one thing I have been considering lately is the controller/HBA setup.
I am currently running an M1015 reflashed in passthrough to my storage vm
So im a novice when it comes to backplanes etc., but wondering if its possible for me to use my new adaptec 5805 for a part of the backplane? - like 8 discs, and then use the remaining 16 on two m1015 controllers? - It looks like theres 6 sas ports on the backplane.. but some seem to be secondary ports - for redundancy?
Anyway, one thing I have been considering lately is the controller/HBA setup.
I am currently running an M1015 reflashed in passthrough to my storage vm
So im a novice when it comes to backplanes etc., but wondering if its possible for me to use my new adaptec 5805 for a part of the backplane? - like 8 discs, and then use the remaining 16 on two m1015 controllers? - It looks like theres 6 sas ports on the backplane.. but some seem to be secondary ports - for redundancy?
Here's something at an "ok" price, from Sweden. (Also, the Swedish Kronor is quite low compared to DK, so might be a good deal?)
Supermicro SC846 4U Chassie 24x3.5" 2x900W Rackskenor p Tradera.com -
Im curious, What is the advantage of having chassis fans that support / are PWM? (is that the 4pin fan connector that allows you to get RPM numbers via IPMI)?
I ask bc i have a 4u 846 (the older one that comes with a SAS1 backplane/expander yet im able to get RPM readings on all my SM fans).
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question 2:
With all of these 4u 846 users here, i think its finally time to get a lingering question ive had settled! on my sm 2u 12 bay, the Blue LED (12x on the HDDs), is normally OFF, but Blinks BLUE based upon activity.
BUT!
on my 4u 846 (i have the BPN-SAS-846A Direct Attached, 6x sff8087 backplane), my BLUE leds are ON and then flicker on activity! (i hate that!! you can get so much more "info" on activity when they are off, and then blink blue on act.
I called supermicro about this (bc i wanted to get my 846A backplane to be off, then blue on act, but after a few days they called back and said that at some point SM changed the default from BLUE off, to BLUE on, and there is no way for the user to alter the default.
sooo.. what is the BLUE HDD led situation for you all with 4u s ? , and pls specify your backplane..
Thanks!
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Could you do this magic for a deal out of Germany too? Or let's say something that is from eBay? I have never heard of tradea
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Seems decent. Tried to open an account, but it seems like you need a .se address to get in
- will look at it during the weekend. Thanks!Edit: Found the "foreign user" button