similar to: Seagate Constellation vs. Hitachi Ultrastar

I know that this has been well-discussed already, but it''s been a few months - WD caviars with mpt/mpt_sas generating lots of retryable read errors, spitting out lots of beloved " Log info 31080000 received for target" messages, and just generally not working right. (SM 836EL1 and 836TQ chassis - though I have several variations on theme depending on date of purchase: 836EL2s,

Greetings, We''re trying out a new JBOD here. Multipath (mpxio) is not working, and we could use some feedback and/or troubleshooting advice. The OS is oi151a7, running on an existing server with a 54TB pool of internal drives. I believe the server hardware is not relevant to the JBOD issue, although the internal drives do appear to the OS with multipath device names (despite the fact

Greetings, In looking for inexpensive JBOD and/or RAID solutions to use with ZFS, I''ve run across the recent "VTrak" SAS/SATA systems from Promise Technologies, specifically their E-class and J-class series: E310f FC-connected RAID: http://www.promise.com/product/product_detail_eng.asp?product_id=175 E310s SAS-connected RAID:

We recently had a disk fail on one of our whitebox (SuperMicro) ZFS arrays (Solaris 10 U9). The disk began throwing errors like this: May 5 04:33:44 dev-zfs4 scsi: [ID 243001 kern.warning] WARNING: /pci at 0,0/pci8086,3410 at 9/pci15d9,400 at 0 (mpt_sas0): May 5 04:33:44 dev-zfs4 mptsas_handle_event_sync: IOCStatus=0x8000, IOCLogInfo=0x31110610 And errors for the drive were

Still have good quality older sata hardware raid cards that require 512 bytes/sector. As far as I know HD manufacturers are not making native 512 bytes/sector drives any more. Some have better 512e emulation than others. Looking for some advice on which to avoid and which are recommended. Thanks. PS this is for a CentOS6 server.

In my new oracle server, sol11exp, it''s using multipath device names... Presently I have two disks attached: (I removed the other 10 disks for now, because these device names are so confusing. This way I can focus on *just* the OS disks.) 0. c0t5000C5003424396Bd0 <SEAGATE-ST32000SSSUN2.0-0514 cyl 3260 alt 2 hd 255 sec 252> /scsi_vhci/disk at g5000c5003424396b

On 2/2/2015 8:11 PM, Jatin Davey wrote: > disk 252:1 | 0-0-0 | 9XG7TNQVST91000640NS CC03 | Online, Spun Up > disk 252:2 | 0-0-1 | 9XG4M4X3ST91000640NS CC03 | Online, Spun Up > disk 252:3 | 0-1-1 | 9XG4LY7JST91000640NS CC03 | Online, Spun Up > disk 252:4 | 0-1-0 | 9XG51233ST91000640NS CC03 | Online, Spun Up > End of Output ************************** > > Let me know if i need to

I just subscribed to this list so in case this subject has already been discussed at length, my apologies. I have been waiting for btrfs forever. I have been waiting for it to become reasonably stable. In the wake of escalating problems with my old hardware RAID setup, I decided now was the time to make the transition. At this point I have been completely transitioned to btrfs for nearly

Hi, I've just got possession of a Dell PE R720 with 2 MD1200 disk enclosures. Both MD1200 are fully populated with 12 x 3 TB disks The system will basically be a student file-server running CentOS 6.x serving various size files from small c programs to multi gigabyte audio and video files over GB ethernet. The first MD1200 will be configured as the NFS disk. The requirements are for 6

We are looking at building a storage platform based on Dell HW + ZFS (likely Nexenta). Going Dell because they can provide solid HW support globally. Are any of you using the MD1200 JBOD with head units *without* an MD3200 in front? We are being told that the MD1200''s won''t "daisy chain" unless the MD3200 is involved. We would be looking to use some sort of

We're looking for tools to be used in monitoring the PERC H800 arrays on a set of database servers running CentOS 5.5. We've installed most of the OMSA (Dell monitoring) suite. Our current alerting is happening through SNMP, though it's a bit hit or miss (we apparently missed a couple of earlier predictive failure alerts on one drive). OMSA conflicts with mega-cli, though we may

FYI, Seagate has announced a new enterprise SSD. The specs appear to be competitive: + 2.5" form factor + 5 year warranty + power loss protection + 0.44% annual failure rate (AFR) (2M hours MTBF, IMHO too low :-) + UER 1e-16 (new), 1e-15 (5 years) + 30,000/25,000 4 KB read IOPS (peak/aligned zero offset) + 30,000/10,500 4 KB write IOPS (peak/aligned zero offset)

John R Pierce wrote: > On 10/7/2015 1:30 PM, m.roth at 5-cent.us wrote: >> No. I'm the one who got the quote and set up the order for my managers, >> and I know what it's got: the ethernet connection is to the internal >> webserver to manage the RAID. the 712S I have is dual-path SAS for data. > > then yeah, you'll need a plain SAS2 external HBA card. If

All, I have a problem with a new Seagate hard disk. The problem occurs when i go to install CentOS, i insert the cd and start the boot up process, when it gets to the section where it detects the hard disks, the driver is seems crashes, the message it produces complains about no one caring about a interrupt on IRQ11. The hard disk is a Seagate 200GB 8MB SATA150 NCQ drive, on a SilliconImage

Banging my head against a Seagate 3TB USB3 drive. Its marketing name is: Seagate Expansion 3 TB USB 3.0 Desktop External Hard Drive STAY3000102 format(1M) shows it identify itself as: Seagate-External-SG11-2.73TB Under both Solaris 10 and Solaris 11x, I receive the evil message: | I/O request is not aligned with 4096 disk sector size. | It is handled through Read Modify Write but the performance

Where can I find a list of supported multipath drivers for ZFS? Keith McAndrew Senior Systems Engineer Northern California SUN Microsystems - Data Management Group <mailto:Keith.McAndrew at SUN.com> Keith.McAndrew at SUN.com 916 715 8352 Cell CONFIDENTIALITY NOTICE The information contained in this transmission may contain privileged and confidential information of SUN

Hi there, http://www.seagate.com/support/disc/download/seatoold_en.exe Seagate offers a Windows executable (needs Win98 or better, 1,9MB) that should create 2 bootable floppy disks that contain a harddrive check program. Invoking "wine seatoold_en.exe" works, but when the floppy should be written, an error occurs "insert 1.44 MB...click retry". I tried to mount a DOS

hi guys I have rather a large set of Seagate's SAS ST32000444SS, over a hundred - experience I'm having from those in conjunction with their tech support is abysmal. I'm trying to update firmware of these drives and nothing works, including tech support. ... and I cannot help but wonder - is just me who is so unlucky and getting very, very poor support(taking naturally only of

On 26/09/18 20:19, Mauricio Tavares wrote: > If ti makes you feel any better, I am not having stellar service from > WD's support. In fact, they act like they never received the HD I sent > for RMA whose tracking number says they did 10 days ago. > > On Wed, Sep 26, 2018 at 2:16 PM, lejeczek via CentOS <centos at centos.org> wrote: >> hi guys >> >> I have

Hi, Does anyone use Seagate ST32000542AS disks with ZFS? I wonder if the performance is not that ugly as with WD Green WD20EARS disks. Thanks, -- Piotr Jasiukajtis | estibi | SCA OS0072 http://estseg.blogspot.com