similar to: RAID configuration suggestion???

we have several R900 servers with PERC 6/E card in it. Recently it we getting some message on /var/log/message say change to "write back" and change back to "write through". We figure out it is PERC 6/E card battery weak. My questions are: 1. some battery only use one year (some even shorter) and already this problem. 2. How come PERC 5/E does not have this issue? 3.

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, Connector 0 Aug 18 15:34:09 host1 Server Administrator:

We have several DELL R900 server with PERC 6/E adapter in it. O.S. is CENTOS 5.5. recently one of server continue pop-up messages on /var/log/message for switch status between "write back" and "write through". ============================== Dec 6 08:09:31 host01 Server Administrator: Storage Service EventID: 2189 The controller write policy has been changed to Write Back.:

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" finish, I manually "startup patrol read". I continue get

We have DELL R900 server with PERC6/i and PERC 6/E in it. O.S. is CENTOS 5.3. I download latest PERC 6 driver from DELL site and tried to installed it. I have error messages said : Module version 00.00.03.21 for megaraid_sas.ko is not newer than what is already found in kernel 2.6.18-128.1.10.el5 (00.00.04.01-RH1). Does CENTOS 5.3 come with PERC6 driver? I knew in CENTOS 4.X PERC 5 or PERC6

?I have been installed?CENTOS 5.2 on several DELL servers and have following problems (even?latest patches apply): ? 1. DELL 2650 can NOT boot under?CENTOS 5.2 PAE mode ? 2. DELL R900 can NOT boot under?CENTOS 5.2 PAE mode (inifinite boot loop) ? 3. DELL R900 with 128 GB RAM can only see 15 GB RAM under?CENTOS 5.2 Xen mode ? Anyone know why?? IS?CENTOS 5.2 certify with DELL server? ? Does?CENTOS

We have DELL R900 server with 128GB RAM (CENTOS 5.5)in it. This server only have one application running and few people use it. Every week I ata least get one or two messages from monitor tool mail to me say: Message=Memory Utilization is 92.02%, crossed warning (80) or critical (90) threshold. Since server have 128 GB RAM and only 1 application. I really don't belive that. Does there

we have DELL R900 with CENTOS 5.3 in it. This DELL R900 come with one integrate PERC6/I and two PERC6/E card. DELL 6/I control 5 internal disks. The original disk sequence are: /dev/sda1 /boot /dev/sda2 / /dev/sdb1 swap ... after I configured PERC6/E disks and reboot, /dev/sda change to RAID disk and original /boot and / change to /dev/sde1 and /dev/sde2. My modprobe.conf is: alias

we plan to setup our ORACLE database server (32 bits DB) and use dell r900 server. This server can put up to 128GB RAM. We are thinking use 32 bits CENTOS 4.7 or 5.2. My concern about CENTOS 5.2 is it only support up to 16 GB RAM on 32 bits O.S. Any suggestion? ______________________________________________________________________________________________________

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.com.tw/

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 large

We have DELL R900 with CENTOS 5.5 installed. Recently I found /var/log/messages have following error come out. I used DELL OPMN check hardware but NO error. kernel: ctxhx[17268]: segfault at 00007fff1fa6afd8 rip 00002b8022887c96 rsp 00007fff1fa6afe0 error 6 anyone know what wrong? Thanks.

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

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 CENTOS 5.5 on X86. I tried to create a "raw partition" (NOT FS) on a disk and it continue to show "ext3". How can I get ride of it? === procedures===== # parted /dev/sde GNU Parted 1.8.1 Using /dev/sde Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) p Model: DELL PERC

we have DELL 6800 server with 12 internal disks in it. O.S. is CENTOS 4.6 and SCSI control card is PERC 4e/di. We plan to configure 4 disks (5,8,9,10) as RAID5 or RAID50. This logical volume will be use as file systems and store database backup files. Can anyone tell me which one is better on performance? Thanks. ?????????Yahoo!??????2.0????????????? - ????? -------------- next part

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 chained the enclosures, or plugged them both directly into the LSI

Hello, I have some ugly numbers given by zttest for ztdummy on an AMD64 box running linux-2.6.15 compiled for Athlon64. linux-2.6.15, zaptel/branches/1.2 r900, jiffies ./zttest Opened pseudo zap interface, measuring accuracy... 99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%

smartctl, hdparm, and sdparm all are valuable tools to obtain hard drive info. But, they don't seem to work, at least, on obtaining hard drive info from drives on a Dell PERC controller. Instead, I'm given basic PERC controller info, not drive info. Is there a tool to let me get the hard drive make/model/serial numbers from a hardware RAID setup? Thanks. Scott

Afternoon, I've got an old Dell PERC 4DC (PCI 64bit/33MHz) sitting in my home rig and with a new board on the way that has PCI-X (133) and PCIe (x4) slots, I was wondering what people would recommend for a cheap hardware parallel SCSI RAID controller (no fake raid please) that is relatively cheap but faster then the old PERC? I'm looking for something cheap that'll do RAID-10 but