search for: md1000

we have several DELL R900 with PERC 6/E adapter in it. R900 using Redhat Linux. Each R900 have two PERC 6/E adapter and at least two MD1000 connect to it. Configuration 1: PERC 6/E -- two MD1000 PERC 6/E -- empty Configuration 2: PERC 6/E -- MD1000 PERC 6/E -- MD1000 Normally first MD1000 for database and second MD1000 for nightly backup. My co-worker told me there is NO difference on pe...

We have DELL server with MD1000 Disk array in it. O.S. is CENTOS 5.5. Recently every time MD1000 "patrol read" start I will get "media error" messages on /var/log/message file. I use MD1000 "slow initialize" to initialize "bad disk" and NO error. After "slow initialize" fini...

I have 15x SAS drives in a Dell MD1000 enclosure, attached to an LSI 9200-16e. This has been working well. The system is boothing off of internal drives, on a Dell SAS 6ir. I just tried to add a second storage enclosure, with 15 more SAS drives, and I got a lockup during Loading Kernel. I got the same results, whether I daisy chaine...

Hi, we would like to establish a small Lustre instance and for the OST planning to use standard Dell PE1950 servers (2x QuadCore + 16 GB Ram) and for the disk a JBOD (MD1000) steered by the PE1950 internal Raid controller (Raid-6). Any experience (good or bad) with such a config ? thanxs, Martin

we have DELL server with Centos 5.3 X86_64 bits version on it. This server also have couple MD1000 connect to it. We configured MD1000 as one hardware Volume size 2990GB. I tried to use "fdisk" to partition this 2990Gb volume and "fdisk" can only see 2000GB. does 64 bits O.S. still have 2TB limitation on File system? Does there has other tool can partition disk size larg...

We have several DELL servers with MD1000 connect to it. Server will install CENTOS 5.x X86_64 version. My questions are: 1. Which configuration have better performance RAID5, RAID50 or RAID60? 2. how much performance difference? ___________________________________________________ ??????? ? ???????????????? http://messenger.yahoo...

I need to replace a slow HP MSA20 that's a bottleneck right now (We are an HP shop). HP's only option with 3.5" SATA drives is stuck at SATA I behind a SAS controller. Dell makes an MD1000 that claims SATA II speeds behind a SAS Perc 5/E (Don't know anything about dell). Anyone got any real world info they can share? I need 3.5" SATA II at least 12 drives behind SAS, I am not concerned about space and could use multiple 1u chassis if I had to. Thanks! jlc -------------- ne...

...t including: debug: Mount[/home/CAE](provider=parsed): Executing ''/bin/df'' debug: //ch208r/Mount[/home/CAE]: Changing device,fstype debug: //ch208r/Mount[/home/CAE]: 2 change(s) notice: //ch208r/Mount[/home/CAE]/device: defined ''device'' as ''/dev/mapper/md1000-home'' notice: //ch208r/Mount[/home/CAE]/fstype: defined ''fstype'' as ''xfs'' debug: Flushing mount provider target /etc/fstab notice: //ch208r/Mount[/home/CAE]: Refreshing self info: Mount[/home/CAE](provider=parsed): Remounting debug: mount provider parsed...

we have DELL server (CENTOS 4.X) with MD1000 connect on it. One of Raid5 (internal 4 disks) has hard disk bad and I replace it. I saw /var/log/messages have following entry: ======================================= Aug 18 15:33:20 host1 Server Administrator: Storage Service EventID: 2049 Array disk removed: Array Disk 0:11 Controller 1, C...

Hi, I've got a DAS DELL MD1000 with a bunch of SATA drives in RAID 5 configuration with total space of 5.4TB. This box is attached to a CentOS5 system (kernel 2.6.18-53.1.6.el5). Any idea how to make this space usable? Is there a limit how big a partition can be? What is the work around? Is there a limit how big a file system...

While thinking about ZFS as the next generation filesystem without limits I am wondering if the real world is ready for this kind of incredible technology ... I''m actually speaking of hardware :) ZFS can handle a lot of devices. Once in the import bug (http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6761786) is fixed it should be able to handle a lot of disks. I want to

Hello Guys I am facing a problem using cifs filesytem on centos 4.3 32 bit to connect to remote shares.we have DAS(Dell md1000) connected to a Dell 2950(win 2003 std).let me descibe the proc which i followed to access thi DAS via 2950.. 1) create a normal user account on Dell2950(win 2003) create 3 folders with names mysqhare1,myshare2,myshare3 in the storage area and assign all permissions to the newly created user(duser...

I am an experienced MS administrator of W2003 servers & Exchange systems. I have 5+ years UNIX mid-level experience but not in centOS. Grounded in SCO UNIX (the real SCO UNIX). We want to use CentOS on a recently grave yarded Dell poweredge 400SC server. This is a P4 3.0 Ghz, w/4GB memory, 2 SATA 250 GB disks. We want to use this server w/CentOS5, to provide file and print resources to 100

...r then expected disk IO. Also, using sar, it seems the disk is measuring different utilization on the domU then the dom0. I''ve attached to the disk with: "phy:/dev/PowerVault00/KojiShare,xvdb1,w" That logical volume has a physical volume of an attached 15 disk raid6 array (an MD1000 from dell). Here is the sar data I''m referencing: http://mmcgrath.fedorapeople.org/dom0 and http://mmcgrath.fedorapeople.org/domU The disk does have one other guest attached to it but that guest has very little disk IO. Other items of note: the data periods above happened during a ba...

We''re setting up ZFS in front of an MD3000i (and attached MD1000 expansion trays). The rule of thumb is to let ZFS manage all of the disks, so we wanted to expose each MD3000i spindle via a JBOD mode of some sort. Unfortunately, it doesn''t look like the MD3000i this (though this[1] post seems to reference an Enhanced JBOD mode....), so we decided to c...

...e2fsck did not help, so the OST was set RO, and drained using lfs_migrate. When the drain was complete, the following sequence of commands was used to reformat and remount the volume. This procedure was successfully used under Lustre 1.8.4. This is a 9-disk, RAID-5, 5.5TB volume, on a Dell MD1000 shelf using a PERC-6 controller. A second 5-disk RAID-5 shares the shelf, with the 15th disk as a hot spare, and that second volume is not having issues. 289 mkdir reformat 290 cd reformat 292 mkdir -p /mnt/ost 293 mount -t ldiskfs /dev/sdc /mnt/ost 294 mkdir sdc 295 pus...

...00/lvol01 For more information: http://www.centos.org/product.html http://kbase.redhat.com/faq/FAQ_103_11461.shtm The email thread "Disk partitions and LVM limits" in CentOS, RedHat and RedHat-Sysadmin mailing lists. Thank you Peter > Hi, > > I've got a DAS DELL MD1000 with a bunch of SATA drives in RAID 5 > configuration with total space of 5.4TB. This box is attached to a > CentOS5 system (kernel 2.6.18-53.1.6.el5). > > Any idea how to make this space usable? > Is there a limit how big a partition can be? What is the work around? > Is there a...

Tired of "little problems" trying to keep 7 drives working in an old desktop computer, I'm considering an external SATA drive enclosure with a controller card based on the Sil3124. http://www.ipcdirect.net/servlet/Detail?no=152 I'm a bit concerned about long-term support, namely that the company's driver page only lists drivers through RedHat 4.

Hello listmates, I would like to build a 12-15 TB RAID 5 data server to run under ContOS. Any recommendations as far as hardware, configuration, etc? Thanks. Boris.

Hi!We''re trying to pinpoint our performance issues and we could use all the help to community can provide. We''re running the latest version of Nexenta on a pretty powerful machine (4x Xeon 7550, 256GB RAM, 12x 100GB Samsung SSDs for the cache, 50GB Samsung SSD for the ZIL, 10GbE on a dedicated switch, 11x pairs of 15K HDDs for the pool). We''re connecting a single Linux