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 ...

learn more… | top users | synonyms

2
votes
2answers
671 views

SAS drive to SAS/SATA backplane then SATA cables to SAS/SATA RAID card?

I just got a Supermicro chasis: http://www.newegg.com/Product/Product.aspx?Item=N82E16816101241 That has a backplane that supports SAS and SATA drives but the backplane has SATA ports to be ...
1
vote
2answers
731 views

Using an SAS Expander with a SAS Controller of a different brand

I'm planning on assembling a server, and I'm just wondering if a SAS expander by IBM (such as this one) would allow me to use the RAID and other features (Battery-backed write-back caching) of a SAS ...
0
votes
2answers
75 views

Does the backplane on an HP server have any impact on the speed of the drives?

I have an HP Proliant DL380 Gen7. The server currently has no drives and is running on the integrated smart array controller. I was looking into replacing the controller with an LSI-9211-8i controller ...
0
votes
2answers
557 views

LSI MegaRaid - Image Drive from Failed RAID

I had a power failure and my LSI MegaRaid 3 disk SAS RAID 0 failed. My attempts to recover the RAID have also failed. I plan to rebuild the array and go with RAID 5 and add another SAS disk. ...
0
votes
2answers
356 views

Wiping hard drives in an IBM DS3512

I have an IBM DS3512 RAID storage device, which I'm planning to sell. How would I reliably wipe my data off of all the hard drives? As far as I can tell, it abstracts away all direct access to the ...
0
votes
2answers
48 views

What limits a Device not to detect multiple LUNs behind a single target?

What limits a Device not to detect multiple LUNs behind a single target? What is required to make this possible in broad perspective? I want to know if there are any limitations in SAS/SATA or SCSI? (&...
0
votes
2answers
480 views

Dell PowerEdge 1950 Drive Bay not showing in SAS Configuration Utility

We have a Dell PowerEdge 1950 in RAID 1. Recently, the drive in Bay 0 began rapidly blinking green (I'm guessing twice per second, indicating "identifying drive"). When I open the SAS ...
1
vote
1answer
63 views

No disks visible behind SAS Expander

I'm trying to hook up an Infortrend SAS shelf and I have a big issues to get the disks visible. The shelf is connected via a LSI Logic SAS1068E B3 HBA with current IT firmware, and 2 SAS cables. The ...
1
vote
1answer
449 views

Dual R710/MD3400 SAS Connectivity

We've recently purchased 2 x Dell R710s and 2 x Dell MD3400 SAS storage devices with 12 2tb drives in each with 2 dual SAS connections from each server to 2 dual raid controllers on both MD3400s (I've ...
1
vote
1answer
322 views

Additional Storage Options for Hadoop HDFS Nodes

We have a small production Cloudera distribution Hadoop cluster(14 nodes, but growing). As we have expanded our usage of this cluster we have found that disk storage is our biggest blocker and ...
0
votes
1answer
31 views

HP ProLiant G6 w/ P410i controller not recognizing ST1000NX0363 drive

I've purchased a new Seagate ST1000NX0363 HDD for my HP ProLiant DL360 G6 Rackmount server. I've installed the drive into one of the hot-swap bays, but unfortunately the P410i controller doesn't seem ...
0
votes
1answer
24 views

Can I use an external 3G SAS device with a 12G card?

I want to connect an old 3G SAS DAS (Dell MD1000) to a new 12G RAID controller (PERC H830 or something LSI 3108-based). I assumed it would be backwards-compatible like SATA1/2/3 is, but after closer ...
0
votes
1answer
21 views

HP 300GB SAS 2.5" Dual Port HDD

I have been offered a couple of HP 300Gb DUAL Port 2.5" SAS drives will this work in a NON HP system ? My system uses a Adaptec 6405e SAS RAID Controller there is NO mention of DUAL port I'm not ...
0
votes
1answer
76 views

IBM BladeCenter S: How to configure new SAS disks

I have an IBM BladeCenter S, and I have added two new 450GB SAS disks. I want to configure the disks as a RAID 0, and assign the new disks to one of the servers in the Bladecenter. When I connect to ...
0
votes
1answer
550 views

How to make Dell PowerEdge R410 boot from two hard drives?

I have a Dell PowerEdge R410 with two SAS drives connected to the SAS controller and I would like that both of them can be in the boot sequence tried to boot. I would like to use md software RAID-1 in ...
0
votes
1answer
130 views

How to enable SAS-12 on LSI 9361 RAID controller

By default, this SAS-12 controller runs with SAS-12 SSDs at SAS-6 speeds. How to unlock SAS-12?
0
votes
1answer
925 views

New HDD swap in SAS 6 ir shows it is missing?

SETUP: Dell Poweredge T410 with Windows Server 2003, SAS 6 IR Raid-1. Both the original drives were Dell Certified Seagate Barracudas for enterprise, 250gb. The new HDD is a Seagate Barracuda 500gb, ...
0
votes
1answer
149 views

Supermicro x8SAX support

Does a Supermicro x8SAX support SAS drives? I looked through the manual but am not seeing where this is mentioned. I want to set up on board raid 1
0
votes
1answer
785 views

Monitor SMART Values of a SAS/SCSI drive with Munin

I'm trying to monitor my two SAS drives using the SMART Tools Plugin for MUNIN. On SATA drives its no problem, all SMART values are being shown. It seems that smartctl doesn't output valuable SMART ...
0
votes
1answer
361 views

ASUS PIKE 6480 doesn't work with debian?

I have DIYed an 1U server with [ASUS Z8NA-D6] motherboard, PIKE 6480 extended RAID card, and four SAS hard disk. And I can find this extended card's module in the linux kernel called mvsas. But fail ...
0
votes
1answer
286 views

ATTO SAS-attached RAID 5 array performance issues on Server 2003

We have an ATTO R380 SAS RAID controller in a Windows Server 2003 HP DL-160 server with 8 700GB Seagate 7200.12 drives. It's configured as a RAID 5 array. ATTO Config says all drives are healthy and ...
-1
votes
1answer
107 views

How to configure expander card RES2SV240 in an Intel Server Board S2600WT?

So, I'm trying to configure this expander card into my server. I have an Intel Server Board S2600WT in a R2312WTTYS case, which means I have a backplane in the front with 12 slots, and another ...
2
votes
0answers
87 views

Expanding JBOD with SAS extenders

My project is expanding 24-HDD ZFS box by adding 45-drive box with option to add another 45-drive box later (all are JBODs). Host box (24 HDDs) is Supermicro with single port expander backplane and ...
2
votes
0answers
48 views

nexenta and hotswap sas disks. cfgadm not working properly

There is a problem with the hot-swap SAS drives. Initial data: Nexenta 4.0.2 Server-based Supermicro (MB S5520HC, internal RAID controller RMS2LL080/LSI 2008), 12 HDD SAS 300G 10 HDD SATA 1T, 2 SSD ...
1
vote
0answers
36 views

SAS expander card, not detecting DAS, is this suppose to work?

I have a similar sas expander HSTNM-B017 and when I connect an external DAS unit to it (HP StorageWorkd MSA50) nothing shows up in device manager or disk manager, as if its not connected. do you have ...
1
vote
0answers
89 views

mpt2sas failure fills syslog

I have a strange error message in the logs, which started like this: :39:35 host1 kernel: [54674279.243416] mpt2sas0: fault_state(0x2651)! :39:35 host1 kernel: [54674279.243543] mpt2sas0: sending ...
1
vote
0answers
98 views

Connect external 4-bay SAS enclosure to HP SAS Expander Card?

I've got an HP DL380 G7 with the HP SAS Expander Card. The server has 16 internal drive bays, which are all populated. It also has an external SAS connector on the expander card. I have an external 4-...
1
vote
0answers
162 views

LSI SAS1068E (aka LSI SAS 3442E-R) bandwidth

Recently I connected LSI SAS 3442E-R and two HP SAS 600GB 10k HDD. My motherboard is AsRock Z97 Extreme6. Disk are configured as JBOD, no raid. Linux lspci shows: 0b:00.0 SCSI storage controller: ...
1
vote
0answers
366 views

Dell r730 + Dell 12Gb SAS + Centos 7 + netvault 9.2 quantum superloader 3 not found

In the above configuration Netvault does not find the library attached to the sas controller. What driver should I see with lsmod for the SAS card? I have: ... mpt3sas 195379 0 ...
1
vote
0answers
527 views

HP Proliant ML350 G5 - smart array initializing

I have a big problem with a HP ProLiant ML350 G5 with 2 SAS HDD 146Gb : it start with the message : "Slot 0 HP Smart Array E200i ... initializing" without any error message. if I test the HDD with ...
1
vote
0answers
248 views

How to change SAS address on Expander

I have the following setup - two supermicro backplane attached to one controller LSI SAS 9207-4i4e and unfortunately cannot access the disks, during boot there are disks only in one backplane, the ...
1
vote
0answers
115 views

SAS/SCSI Errors in Syslog: Kernel FAILED

I have a Dell 2950 2U rackmount server with 3 146GB SAS drives in a RAID array, running Slackware 10.2 (an old version, I know). Recently I am seeing these errors in my /var/log/syslog repeating very ...
1
vote
0answers
280 views

SAS RAID Card not accepting disks

I have just purchased a Dell 6/IR SAS RAID card for a Dell SC1435 Poweredge Server that I bought a few months ago on eBay. When I got it, the SAS RAID card fitted (a 5/IR) was faulty and it was ...
1
vote
0answers
664 views

LSI 9211-8i won't boot in KVM

I'm running ubuntu 11.04 with an LSI 9211-8i in IT mode with the latest firmware (10). I'm using KVM with VT-d enabled to pass the entire PCIe device through to the guest OS. I have the device ...
1
vote
0answers
116 views

SUN x4600 SAS disk seems to be verry slow

I'm using SUN x4600 with 64GB ram and 2 SAS 146GB 10krpm with Solaris 10 One told me, that the system seems to be slow, so I did a iostat -xtc 5 2 which showed for a long period of time only 4-6000 ...
1
vote
0answers
951 views

SAS vs SATA vs SSD: How to measure performance difference between SATA and SAS?

SAS drives can address multiple IO operations from a single platter revolution if the data happens to be where the head is already positioned. How can you measure whether this actually makes a ...
0
votes
0answers
24 views

RAID 5, 50 or 10 with HOT SPARE Possible…?

I want to go for a Larger storage capacity but getting confused to use RAID Level. As have to reach the required IOPS, still maintain reasonable redundancy and have at least 5TB of logical storage ...
0
votes
0answers
25 views

lsi sas 3442E-R Low write speed (4 MB/s) IN RAID 1 MOD

R controller (B1 Revision) Latest BIOS and MPT version MotherBoard: ASUS P8H77-M LE, Latest BIOS version sas 3442E-R insert into PCI-E x4 slot. in x16 slot - not detect motherboard DISKS: WD sata ...
0
votes
0answers
16 views

Dell SAS 6ir suddenly can't find boot devices

I have a Dell Poweredge R300 with a Dell SAS 6ir RAID Controller that's worked perfectly for years. It has two 500gb drives configured in RAID 1. We had a long power outage the other day that ...
0
votes
0answers
53 views

IBM x3650 M3 Rackserver - What configuration for VMHost

I need a Server for hosting several virtual machines. I want to run 3-5 Linux systems (mostly Debian) VMs for webserver, database, GitLab, ldap and also a fileserver. I can choose between these two ...
0
votes
0answers
78 views

Add a new disk to raid1 on LSI Logic SAS1064E B1 controller

I've a trouble with my (two disks) RAID1 array running on a LSI Logic SAS1064E B1 controller. The array is degraded and one disk isn't detected by the controller. I've tested both disks with a sata to ...
0
votes
0answers
169 views

LSI SAS2208 poor RAID 10 peformance

Due to customer and sales being inattentive, the customer bought a Lenovo/IBM x3650 M4 using the onboard m5110e RAID for a mix of RAID1 and RAID10, but without the RAID RAM memory, the flash backing ...
0
votes
0answers
119 views

How to reset Areca RAID card built-in SAS expander password?

I just bought used ARC-1882IX-12 card but the seller forgot password to the SAS expander. The web management worked well with default "0000" password. How to reset it ?
0
votes
0answers
64 views

Is SAS 2.1 compliance really required to use an active SFF8088-SFF8088 cable?

RAID card: LSI MegaRAID 9286CV-8e RAID chasis: Norco DS-12E using an LSISAS2x36/28 expander. Currently the chasis and card are very close together but I need to move them pretty far apart. I have ...
0
votes
0answers
50 views

Scsi command to find out maximum link speed of a sas drive

I am trying to find a scsi command that would determine maximum link speed to a HDD. Mode_sense page 19 gives negotiated speed I believe. Does anyone know how can I find out maximum link speed of a ...
0
votes
0answers
22 views

Accessing existing disk using MegaCli preserving data

I would like to access an existing SAS drive using a megaraid controller. This seems to be possible with MegaCli -CfgEachDskRAID0 -a0 It is unclear from the documentation I've found that this ...
0
votes
0answers
73 views

sas sense key data protect

I have several Hitachi Ultrastar SSD400M Model #HUSML4040ASS601. They had a block size of 520 and I was able to successfully format all but one of them using sg_utils' sg_format to 512. However, one ...
0
votes
0answers
25 views

I am trying to deploy SAS ECM webapp over Weblogic Server, but I am not able to start this app and getting below error in error log

I am trying to deploy SAS ECM webapp over Weblogic Server, but I am not able to start this app and getting below error in error log <Jun 29, 2015 11:44:12 AM GST> <Error> <Deployer> ...
0
votes
0answers
135 views

LSI SAS 9211-8i not showing drives from HP SAS Expander

I am trying to boot from one of the HDD's attached to my LSI card however I cannot as it does not find the bootable drive. I have selected the card as a boot device in the BIOS. When I use Ctrl + C to ...
0
votes
0answers
115 views

SATA III HDDs not working on SATA II RAID HBA

I would appreciate any help with this. We have Sunfire x4275 disk server with Sun StorageTek SAS RAID HBA and trying to get working these disks: WD RE 4TB Enterprise SATA III (WD4000FYYZ) Sun RAID ...