similar to: Growing HW RAID arrays, Online

Displaying 20 results from an estimated 8000 matches similar to: "Growing HW RAID arrays, Online"

2007 Sep 24
2
parted - is there a problem
Everyone, I recently added a 300gig Seagate sata drive on a Centos 5.0 and have a couple of questions. The drive was recognized with the device as /dev/sdc. The system came with some SCCI drives that are labeled as /dev/sda and /dev/sdb. I was surprised that the sata drives used sdc. Are the sata drives considered more like SCCI or IDE drives? The real problem occurred when I tried to
2013 Mar 08
4
Cannot mount 3TB MyBook USB HD
Hello, new Linux user here and I cannot mount a new (empty) WD MyBook Essentials 3TB USB external hard drive (Model WDBACW0030HBK-NESN). I'm only about 3 weeks into this linux thing and so please forgive me if any of my syntax is off My linux OS is CentOS 5.4 x86-64 running on a dedicated HP z400. The WD MyBook is to back up the large data files we are creating on the HP400 (it's
2013 Sep 10
2
large SCSI RAID, replacing server
I have a system running CentOS 6.3, with a SCSI attached RAID: http://www.raidweb.com/index.php/2012-10-24-12-40-09/janus-ii-scsi/2012-10-24-12-40-59.html For disaster recovery purposes, I want to build up a spare system which could take the place of the server hosting the RAID above. But here's what I see: # fdisk -l /dev/sdc WARNING: GPT (GUID Partition Table) detected on
2007 Nov 13
1
sdc1 without the sdc
So I'm working with the iSCSI Initiator and an EqualLogic SAN. I'm not sure when this might have happened, but it appears that the /dev/sdc device is missing, yet the /dev/sdc1 partition exists AND is mountable. Is there a method to re-create the /dev/sdc device? I cannot dd or fdisk it, obviously, but I can mount the /dev/sdc1 partition and it works just fine. Not having the /dev/sdc
2013 Mar 17
2
mount exited with exit code 18
Hey Y'all, I'm trying to mount a USB drive with an NTFS file system on it. I need the drive in a win-7 virtual box instance. Error Dialog is: Error mounting: mount exited with exit code 18: Error opening '/dev/sdc1': Read-only file system Failed to mount '/dev/sdc1': Read only file system [root at mushroom /]# ls -l /dev/disk/by-id | grep usb lrwxrwxrwx. 1 root root
2016 Apr 22
7
[OT] disk utility showing message "the partition is misaligned by"
greetings. centos 6.7 [current] 'disk utility' has started showing message; WARNING: The partition is misaligned by 2560 bytes. This may result in very poor performance. Repartitioning is suggested. for sdc5 - /home partition. /dev/sdc5 302243312 156348604 130534968 55% /home /dev/sdc7 80854912 57088 76683952 1% /hdd/c/07 other than time involved to backup
2007 Sep 22
2
fstab problem after a failed drive
Everyone, I installed a sata drive on a SuperMicro with SCSI drives. No problem with the installation. Everything went as expected as the os recognized the drive and assigned /dev/sdc to the new 300 gig Seagate drive. I had planned to use this drive for backup tarballs. The drive had been functional for about a week with no problems. Apparently it went out today when I tried to reboot the
2013 May 17
2
F18: Create a USB install of CentOS 6 from iso
Hi all, On a F18, I installed livecd-tools-18.15-1 I downloaded CenOS6.x minimal .iso and with livecd-iso-to-disk the resulting USB is never bootable: the computer doesnt boot on it. Tested on many computers. The fact is I succeded to install CentOS on a Netbook (no CD/DVD tray), but I dont remember how I invoked livecd-iso-to-disk. I tried with many combinations (/dev/sdc is the USB
2002 Aug 25
2
2 root disks sdb1,sdc1; if set "root=/dev/sdc1", mtab lies saying sdb1 is root!?
I have 2 SCSI disks each w/a RH 7.3 ext3 root filesystem: /dev/sdb1, and /dev/sdc1. /dev/sda1 is an old RH4.2 root filesystem. (sdb1 was created as an image of sdc1 using dd.) I have no problem booting from a SYSLINUX 1.52 floppy with SYSLINUX.CFG containing "append initrd=initrd.img root=/dev/sdb1". When I alter SYSLINUX.CFG with: "append initrd=initrd.img root=/dev/sdc1".
2014 Mar 17
1
Slow RAID resync
OK todays problem. I have a HP N54L Microserver running centos 6.5. In this box I have a 3x2TB disk raid 5 array, which I am in the process of extending to a 4x2TB raid 5 array. I've added the new disk --> mdadm --add /dev/md0 /dev/sdb And grown the array --> mdadm --grow /dev/md0 --raid-devices=4 Now the problem the resync speed is v slow, it refuses to rise above 5MB, in general
2006 Jan 03
1
Large partition problem
I really hope someone has a clue on this one.... :) I've got a 2.2TB array mounted on a 3ware 9500 controller. I installed it last week ensuring that LBA was enabled and using gpt with parted to get the full size available on one array. I also think I chose reiserfs for the array. We then moved ALOT of data to the array. Problem now is that after a reboot LBA doesn't seem to be in
2010 Apr 05
1
Kernel Panic, Server not coming back up
I have a relatively new test environment setup that is a little different from your typical scenario. This is my first time using OCFS2, but I believe it should work the way I have it setup. All of this is setup on VMWare virtual hosts. I have two front-end web servers and one backend administrative server. They all share 2 virtual hard drives within VMware (independent, persistent, &
2010 Dec 09
1
Extremely poor write performance, but read appears to be okay
Hello, I'm writing from the otherside of the world from where my systems are, so details are coming in slow. We have a 6TB OCFS2 volume across 20 or so nodes all running OEL5.4 running ocfs2-1.4.4. The system has worked fairly well for the last 6-8 months. Something has happened over the last few weeks which has driven write performance nearly to a halt. I'm not sure how to proceed, and
2017 Mar 18
4
"isolinux.bin missing or corrupt" when booting USB flash drive in old PC
On 03/18/2017 01:18 AM, Ady Ady via Syslinux wrote: > Some of the things you should / could (re)test / (re)try: > > _ Verify the md5sum of the ISO image. SHA256 verified for downloaded image and for contents of USB flash drive (see below). > _ Is this particular USB device _still_ capable of booting newer > computers? Yes. > What happens if you would try _again_ to boot a
2006 Feb 24
3
Dom0 lvm/software raid rhel4.1 booting issues.
Basically the issue comes down to my Volume Groups not being found by this initrd, causing good ole kernel panic. initrd-2.6.12.6-xen3_12.1_rhel4.1.img [root@xen01 lvm]# uname -a Linux xen01.inside.***.com 2.6.9-22.0.2.ELsmp #1 SMP Thu Jan 5 17:13:01 EST 2006 i686 i686 i386 GNU/Linux [root@xen01 lvm]# cat /etc/redhat-release Red Hat Enterprise Linux ES release 4 (Nahant Update 2) Everything
2019 Oct 20
2
Manual partitioning and LVM
I can't seem to figure out how to partition for install. I've tried both CentOS 8 and 7.7 netinstalls. I've got 3 disks: sda (big hardware RAID array), sdb (SSD), and sdc (internal SD card for booting). I want to put /boot on sdc, /usr on sdb, and / on sda. I don't care what format is used on sdb and sdc, whatever will let it boot. I want LVM on sda so that I can use
2009 Jul 30
4
LSI MegaRAID system status
Dear list, I have inherited a CentOS-5 box with a LSI Sata Raid controller. It is configured as a RAID5 w/hot-standby. My concern is that I have no present means of determining the RAID status w/o downing the system and going into the bios to get status. If a disk has failed and brought the standby disk online, I would like to know about it, the day it happens by seeing it in syslog or getting
2015 Nov 03
1
safest way to grow a LV under VMware ESXi5.5
> > > Ok, that *is* small. I'd worry about a logfile suddenly growing massively, > and freezing your system. (Yes, it has happened here, and then there was > the time a summer student ran something, wouldn't be back until Monday... > and got a 20G logfile, which blew out the NFS-mounted home directory fs, > on which a number of other people resided... including *me*,
2008 May 04
1
Segmentation fault in 3.63 on 16GB USB
Hi, I bought a 16GB Transcend JetFlash V10 yesterday and am trying to put the fc8 livecd on it (after filling it up with all sorts of other junk :) I've only plugged it into an fc8 machine (from unopened) - nothing else. I also have a Toshiba U3 2GB USB. The OS is fc8 fully updated except the kernel (2.6.23.15-137.fc8) the livecd-iso-to-disk uses the command "syslinux -d syslinux
2016 Jul 13
3
Broken output for fdisk -l
There were no live connections. The problem what we had was more related to OS requirement for some software. This drive was not in a bad shape. On 12 July 2016 at 23:03, Gordon Messmer <gordon.messmer at gmail.com> wrote: > On 07/12/2016 09:52 AM, Hersh wrote: > >> There was some problem with our system so I re-installed the server with >> CentOS 7. Now, when I am