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Questions tagged [sas]

Serial Attached SCSI (SAS) is a computer bus used to move data to and from computer storage devices such as hard drives and tape drives. SAS depends on a point-to-point serial protocol that replaces the parallel SCSI bus technology that first appeared in the mid 1980s in data centers and workstations, and it uses the standard SCSI command set.

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Dell PowerEdge R410: Format SAS NetApp drives to 512B sector size for use in RAID

Thanks for helping out. Some time ago I got two 400GB NetApp drives for use in my Poweredge server. I attempted for a while to get them to work but they would not join a RAID disk group. I found this ...
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SAS HDD not working in TrueNAS Build, even with compatible backplane

Good afternoon everyone, I have a TrueNAS server in my homelab that has been running for quite some time, and it's due for an upgrade. I currently have a mix of 4 different SATA HDD in RAIDz2 ...
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On a used Nutanix/Supermicro server, I can't see an added SAS drive from the bios even though I can when installing Ubuntu from USB

Bought a used Nutanix 2-node server. It has a SATADOM boot drive in the motherboard with Nutanix software and CentOS. I want to just run bare metal Ubuntu server so attached a 4TB SAS drive to the ...
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Supermicro backplane diagnostics

I have three supermicro servers, 2x 3U chassis with X8DTE motherboard and SAS-836TQ backplanes and 1x 1U chassis with X9DRW-iF with SAS-815TQ backplane. 1 of the 3U backplanes only recognizes 12 out ...
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SuperMicro 16-Bay chassis only recognizes 12 drives

I recently purchased two refurbished Supermicro SC836TQ (3U, 16bay) chassis with SAS backplanes (Standard SAS836-TQ planes). One works perfectly fine, but the other fails to recognize/initialize any ...
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Bacula tape library and SCSI device kernel NULL pointer

I was trying to run a bacula restore, but it complained about remote-sd communication. Turned out bacula-seed was not running on host machine. Service was started, but the issue still persisted. That'...
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How to remove all multipath references on server, to survive reboot"

I have a few enclosures running on Ubuntu server that I am not creating as raid arrays. They are all individual xfs single partioned single drives. I would only like to see the drive itself show up ...
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HP SAS SSD drives are locked?

I have 2 HP SAS SSD drives I acquired as part of a bulk purchase of parts. One is HPE Model: DOPE1920S5xnNMRI and the other is HPE Model:ARFX1920S5xnMTRI I have 6 servers here with Raid Controllers. ...
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Can you run SAS drive from SAS backplane to SATA on mobo?

Have an SAS drive plugged into SAS port on the backplane, and it is connected to SATA on the motherboard. Is it possible to use it this way? It is a testing server for cloning another SSD.
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SAS Drive Upgrade [closed]

We have a HP Proliant server with a RAID 1 disk ( 2x 146Gb 15K SAS) configuration. The logical drive is full and I would like to expand it. I've purchased 2 x 300GB 15K SAS to replace the 146K ...
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Troubleshooting SATA/SAS reverse breakout cable

For a new server build, I'm trying to connect a SAS HDD backplane (SFF-8643) to a SATA motherboard. From my research, this should be possible using reverse breakout cables. I bought and installed two &...
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Is there a difference in performance or capability in these sas cables?

I'm looking at sas sff-8644 to sff-8088 cables and noticed that some are single cable where as others are dual cable. What's the difference between these, and is one better when connecting an hba to ...
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How to ensure SAS-3 wide port configuration is enabled?

I have: A commodity Linux server, in this I have installed: 1x HBA storage adapter Broadcom (LSI) 9500-8e having 2x mini-SAS-HD connector, connected to: 1x Storage enclosure with dual input mini-SAS-...
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IBM M1015/SAS2008 IT mode + HP SAS Expander slow writing speeds

I have a PC with AMD Ryzen 9 3950X, ASUS ROG X570 and mixed 2x16GB DDR-3200 + 2x16GB DDR-3600 RAM. Ubuntu 20.04 LTS 6 x SATA HDDs via MB In the beginning I used the HBA only for 5 x SAS HDDs, and it ...
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Dell T610, Perc H700, Netapp Savvio 600G SAS drives - unable to create any RAID

Trying to create a new Raid 10 VD using 4 x Netapp Savvio 10K 600G SAS drives (2.5) fails. After creation the vd/drives enter into failed state (immediately), and I am unable to initialize the VD. I'...
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nagios check_raid, megacli reporting wrong disk capacity, volume info on C240M5 Cisco 12G Modular Raid Controller [SAS3516]. TOSHIBA MG06SCA800A

nagios raid_check for new CiscoC240M5 with Cisco 12G Modular Raid Controller SAS3516 was failing. For now I've modified check_raid to skip over the volume check part, checking only the physical drives ...
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Hard Drive benchmarking software giving slow speeds

At my company, we are about to do a major software upgrade, and our contact for this software has given us some benchmarks to hit for our new server that the software will be put on. Specifically, he ...
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IBM LTO4 Backups Failing

I am new to tape backup systems and recently bought a used IBM TS3100 3573-L2U library with a ULT3580-TD4 LTO4 SAS drive as well as some fujifilm tapes. I have followed this guide/HOWTO and am using ...
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SAS HBA card not working

I have a NAS server with three SAS HBA cards. Two are SAS3 and work just fine, they connect to three 48 drive JBOD cabinets. The third is SAS2, connecting to a tape robot with 5 drives, and does not ...
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RAID0 on 16 8TB HDD's writes at speed 3-4 MB/s only

I have a pretty modern RAID hardware for this: Controller: Intel RS3SC008 SAS Expander: Intel RES3FV288 HDDs: Seagate ST8000AS0002-1NA17Z For the moment, I don't have BBU, which should be Intel ...
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SAS3 HBA / Backplane Issue

I have the Supermicro BPN-SAS3-743A backplane hooked up to a AOC-S3008L-L8i RAID card in IT mode using a regular mini SAS SFF-8643 to SFF-8643 cable bought from Amazon. When I'm in the HBA bios, the ...
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Understanding smart atrributes for SAS drives behind raid controller

I have Dell Poweredge machines that run esxi 6.5. I need to monitor the health of the disks that are behind perc raid controller. I have installed perccli. I also want to get the smart parameters of ...
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Bunch of SAS disk and want to wipe all of them

I have 40 SAS disks. The model number is HUS156060VLS600. 600 GB 15K 3.5 inch SAS disk. It came from a customer. And the customer wants to wipe all data inside of SAS disks. Customer said the disk was ...
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Controller hp h240 Smart hba refuses to work with Linux?

Trying to make the above mentioned controller work in the Linux environment (Tried more than 10 popular distributions, the picture is unchanged). lshw shows the following: *-sas UNCLAIMED ...
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Is SAS3 backwards compatible with an SAS 1 controller?

My Supermicro X8DT3-LN4F motherboard supports SAS. The cheapest price per gigabyte I can get at 7200RPM is for an 8TB SAS3 drive. I have searched and it appears that SAS2 is backwards compatible with ...
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Connect extra 4 SAS HDDs to HPE Proliant Dle360 gen9

I have an HPE Proliant Dle360 gen9 configured with 1x 500w PS, 32GB ram, 1x 12 core Xeon cpu. At the moment its 4 front bays are occupied by 4 SAS HDDs. I want to replace them with 4 SAS SSDs and also ...
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mix SAS and SATA HDDs in RAID 0

Specs for some RAID controllers (for instance LSI 9261-8i) say that it's possible to mix SAS and SATA disks in the same RAID array but such practice is discouraged (but without explanations why). ...
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Legacy SAS HDDs with no access to erase the data on them

I need to erase then recycle a bunch of SAS HDDs. They are from servers (I removed from a local ISP for a client) that require 20 amp power, which my house doesn't have, so I can't just erase them in ...
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2 votes
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CentOS Multipath using SAS Disks and Multiple Hosts

===========System Design=========== Server A --> 2 PCI LSI HBA Cards Server B --> 2 PCI LSI HBA Cards 8 x SAS Disk Shelf --> Dual SAS Controller 12 Slot Disk Shelf 96 Disks all SAS Seagate ...
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Maximum write speed of HP Ultrium 1760 drive

The write speed of the HP Ultrium 1760 drive is specified as 120MB/s with LTO-4 media and 80MB/s with LTO-3 media. However I get half of that - 80/40 MB/s respectively. The connector is SFF-8482 at ...
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Does IO performance degrade when a SAS SSD is attached with redundancy?

I have some Seagate Nytro SSDs (model xs800le70004), SuperMicro SAS3 JBODs (2C models with redundancy), LSI 9300 SAS3 Cards, and SAS HD Cables (SFF-8644). When the SSDs are attached with both primary ...
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Can SAS expanders from the same HBA/RAID card be cross-linked?

I am building a 24-drive storage server using an existing 8-port SAS RAID controller and a chassis with passive backplanes, which means I need expanders. Currently I am using the HP 36-port expander ...
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SAS drives not getting detected + orange light

I am using a HP Proliant server with the original hard drives. They have worked before. I had it powered off for like two weeks. After trying to power it on again, the two SAS drives had an orange ...
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Debian SAS Not Attaching As SD device (another does)

I have an x4100 with 4 drive slots 3 drives are part of the RAID 1E. On the RAID Array I have installed Debian. I am using the 4th slot for accessing file storage drives. The HP 600GB drive attaches ...
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Can I connect HP Ultrium 1760 drive to LSI Logic SAS 3041E controller using the cable on the picture

I want to connect HP StorageWorks LTO-4 Ultrium 1760 tape drive to LSI SAS 3041E controller using the cable on the photo. The cable is advertised as 0.7M Mini SFF-8482 to SAS 29P SATA . Or an adapter ...
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What will I need to create a web server out of an R710? [closed]

I recently got hold of an R710 (DELL PowerEdge) & want to use it to host multiple sites. I did not come with any HDD’s but I was told I need one with Windows Server. I currently host my sites on a ...
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SuperMicro Servers can't detect ALL Disk attached to SAS

I got a used Supermicro server with no drives in it. When I plug in a SATA drive it detects it just fine but when I plug in a SAS drive BIOS not detect the SAS drive. FreeNas OS not detect SAS Storge. ...
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1 vote
3 answers
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Tape drive Connectivity - Fiber channel Vs SAS

We want to change our tape backup system and acquire a LTO8 tape drive. Something that I cannot find the answer easily is what are the pro&con of the connectivty by Fiber channel or SAS. For the ...
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Fujitsu D2616 Raid Card Lsi Mega Raid Enable Ports

I have a Fujitsu server with D2616 raid contorller, this has 2 mini SAS ports on it with one connecting into a backpane where i have 4 hdd plugged in. This works fine however wanted some SSD's in ...
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Mac - Thunderbolt eGPU + PCIe SAS card for LTO tape drive (SAS card compatibility)

I'm looking for open minded person who can answer my unusual question that might defy logic at first glance but might be valid. Recently I got need for reading LTO tapes that act as archive. I would ...
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5 votes
1 answer
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Issue with LSI SAS2116 - no drives being detected on Fedora 32 kernel 5.8.*

Last week I updated my kernel using the regular DNF update process. On reboot, none of the drives in my mdadm arrays were detected. I narrowed down the issue to a problem with the kernel and used an ...
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3 votes
1 answer
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Failing ZFS Raid-Z2, need to build new pool but lack a SAS port. Can I disconnect one drive from Raid-Z2?

I have a Raid-Z2 pool with 6 * 4TB drives. All the drives have a bit over 40 000 hours running time. Now they all seem to be degrading at the same time. The pool is degraded, and all drives are marked ...
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1 vote
2 answers
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How to use 12 HDDs with the Supermicro BPN-SAS3-826EL1 backplane?

I have got a chassis with the Supermicro BPN-SAS3-826EL1 backplane. This backplane allows 12 HDDs to be attached. However, I obviously haven't yet understood the cabling between the HBA and the ...
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New server has a HBA mini-sas-hd connector. How can I connect 24 disk to one raid card?

Is it possible to connect all 24 disks to one raid card ? How do I connect these physically ? Do I need an expander ? Or is it-mode flushing sufficient ? I read it-mode flushing permits up to 1024 ...
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-4 votes
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3.5" SAS drives in server with 2.5" bays [closed]

We recently acquired a very cheap 2nd-hand server (HP ProLiant DL380 G7). We have a number of 3.5" SAS drives, however the server only has mount points for 2.5" bays. We would still like to ...
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1 vote
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Setup with server and storage shelves for ~400TB on gigabit ethernet [closed]

Today i sketched out a storage setup, but since i am not very experienced with enterprise level storage, i would be very glad to have the concept reality checked by more experienced folks. ...
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1 vote
1 answer
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How can I recover data from a five disk raid 5 on HP Proliant DL 380 [closed]

How can I recover data from a five disk RAID 5 on HP Proliant DL 380 where four of the five disks are reporting a SMART error. I have some critical data on the failed logical drive and checking online ...
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2 votes
1 answer
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How much PCI-E bandwidth can my SAS HDD array make use of?

Note: This question is real-world, but to analyse it, please note I've begun from a "theoretical" starting point of device and bus capability, which I acknowledge will not usually be at all ...
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Replace SAS disk for HP ProLiant 380DL Raid1

I have HP Proliant Server 380DL G9 with 5 SAS disks, (2 disks for raid 1,also 2 disks raid 1 and the last one is raid 0) one of the disks in the 1st raid 1 is flashing orange, so its recommended to ...
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2 votes
1 answer
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Disk Support HP 400 SAS controller [closed]

I receive a months ago an HP Proliant DL360 G5 with an HP Smart Array P400i Controller with 256 Mb, i have 2 sas 10k 72 Tb disk and i want to upgrade. I buyed 4 HDD SAS 10K Hitachi 450 Gb, but the ...
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