Displaying 20 results from an estimated 20000 matches similar to: "how to find out which is the system disk by bios?"
2007 Aug 20
3
RAID storage - SATA, SCSI, or Fibre Channel?
I have a Dell PowerEdge 2950 and am looking to add more storage. I know a lot
of factors can go into the type of answer given, but for present and future
technology planning, should I look for a rack of SATA, SCSI, or fibre channel
drives? Maybe I'm dating myself with fibre channel, and possibly SCSI?
I may be looking to add a few TB now, and possibly more later.
What are people
2017 Feb 18
3
usb drives & Orico ORICO 9548U3-BK
Everyone,
Is there a way to manually assign usb drives to a specified device
label. Is there a way to force two usb drives to be labeled as
/dev/sdc and /dev/sdd?
I decided to build an archive server for the purpose of backing up
other fedora/centos desktops at the office. I built a machine and have
installed Centos 7.3 on it with all updates current. I also purchased
a 3.0 usb sata drive
2008 Apr 17
2
Question about RAID 5 array rebuild with mdadm
I'm using Centos 4.5 right now, and I had a RAID 5 array stop because
two drives became unavailable. After adjusting the cables on several
occasions and shutting down and restarting, I was able to see the
drives again. This is when I snatched defeat from the jaws of
victory. Please, someone with vast knowledge of how RAID 5 with mdadm
works, tell me if I have any chance at all
2011 Sep 28
3
add on sata card relabeling drives, installation
Hi all.
I have a new server and am playing with the installation. (centos 6). My
onboard sata card has 6 drives attached to it,
yet the server has 8 bays. I bought a sata controller card (adaptec) and
added it to the mix, adding two more drives.
Everything works and all is accessible, but there is one annoying issue.
When installing with anaconda, the 2 drives located on the add-on sata
card
2016 May 25
6
Slow RAID Check/high %iowait during check after updgrade from CentOS 6.5 -> CentOS 7.2
I?ve posted this on the forums at https://www.centos.org/forums/viewtopic.php?f=47&t=57926&p=244614#p244614 - posting to the list in the hopes of getting more eyeballs on it.
We have a cluster of 23 HP DL380p Gen8 hosts running Kafka. Basic specs:
2x E5-2650
128 GB RAM
12 x 4 TB 7200 RPM SATA drives connected to an HP H220 HBA
Dual port 10 GB NIC
The drives are configured as one large
2011 Dec 29
2
CentOS 6 x86_64 can't detect raid 10
Dear All,
I just got a new server with the following specifications:
motherboard : Intel S5500BC
CPU : Xeon Quad Core 2.6Ghz
RAM : 8GB
HDD : 4 x 2TB SATA with configured raid 10 using raid embedded
server.
The problem is the centos installer can't detect raid virtual disk. I
can't find any log error with the following error messages during
installation process:
2009 Nov 02
5
info about hdds in raid
How can I tell wich HDD to swap, when the "cat /proc/mdstat" says one HDD of the RAID1 array has died?
Does the HDD's has some serial numbers, that I can see in "reality", and I can get that number from e.g.: a commands output?
How could I know wich HDD to swap in e.g.: a RAID1 array?
thank you
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2008 Mar 11
1
Question on SATA DVD using centos 5.1
On my machine I have
SATA0: HD
SATA1: HD these two drives are set as RAID1
SATA2: HD extra
SATA3: DVD
SATA4: external USB disk
Snip from dmesg shows the ATAPI device being detected.
ata3: SATA max UDMA/133 cmd 0x9e0 ctl 0xbe0 bmdma 0xe400 irq 10
ata4: SATA max UDMA/133 cmd 0x960 ctl 0xb60 bmdma 0xe408 irq 10
ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata3.00: ATAPI: PIONEER BD-ROM
2009 Nov 20
3
steadily increasing/high loadavg without i/o wait or cpu utilization
Hi all,
I just installed centos 5.4 xen-kernel on intel core i5 machine as dom0.
After some hours of syncing a raid10 array (8 sata disk) I noticed a
steadily increasing loadavg. I think without reasonable i/o wait or cpu
utilization the loadavg on this system should be very lower. If this
loadavg is normal I would be greatful if somone could explain why. The
screenshots below show that there is
2014 Dec 25
1
PXE install in a boot on san with LVM environment, fails after reboot
Hello,
I need to automate installation of CentOS 7.0 using PXE and kickstart.
My server is diskless, I'm installing CentOS on a 25GB LUN on a FC SAN
with 4 paths. This LUN is the only one accessible by the server.
Anaconda processes successfully the installation. But on reboot, I get
stuck on a prompt after BIOS. I think I have an issue with storage
configuration / bootloader
2017 Nov 03
3
CentOS 6 P2V alternatives?
Hello all,
This week I've tested out a few ways to do a P2V on a rather ancient CentOS
6 server, in order to move it to a Hyper-V host.
So far my tests have failed rather spectacularly.
Initially I was set on doing a simple dd-routine, but was told that the
server cannot be taken off-line as it's being used daily, so had to look for
other solutions.
The disk setup is currently as
2008 Mar 03
3
LVM and kickstarts ?
Hey,
Can anyone tell me why option 1 works and option 2 fails ? I know I
need swap and such, however in trouble shooting this issue I trimmed
down my config.
It fails on trying to format my logical volume, because the mount point
does not exist (/dev/volgroup/logvol)
It seems that with option 2, the partitions are created and LVM is setup
correctly. However the volgroup / logvolume was not
2011 Mar 31
1
CentOS Digest, Vol 74, Issue 31
thanks for the reply, Phil
It would, were udev not inserting USB and/or eSATA drives at /dev/sdb1
and/or /dev/sdc1 and exposing the array to the udev rule intended to
handle only removable devices (at sdc or sdd). The array then mounts
unpredictably in /media/xxx-sdc1 or sdd1 - not what is wanted - depend
on how many removable devices are plugged at the time of rebooting. Of
course, a single
2007 Apr 11
2
HD/Partitions/RAID setup
I have a machine that's been configured as follows using its BIOS tools:
SATA-0 is a 160 GiB drive used as boot
SATA-1 and SATA-2 are both 500 GiB drives and were configured as a
RAID-1 in BIOS.
When the system boots up, BIOS reports 1 160 GiB SATA drive, and 1
Logical volume as RAID-1 ID#0 500 GiB, which is what I would expect it
to report, as the two drives are now raided
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
2007 Mar 02
3
3.0.4 ACPI support and Opteron 2210 ?
Hello,
I originally posted this to xen-users, but someone suggested I post it here.
I am having ACPI problems on a PenguinComputing Altus1600 system.
It has 2x dual core Opteron 2210 processors.
The system boots with a standard Debian or Ubuntu SMP kernel, with ACPI
enabled. However the xen live cd, binary xen install, as well as my own custom
compile of xen 3.0.4 from source will not boot.
2007 Oct 13
1
Problem creating volgroups with kickstart installations (on xen)
I'm testing doing kickstart installations on Xen VMs. This is
the first time I'm trying out kickstart at all, so I rather think I'm
doing something wrong in the kickstart configuration than it is
a Xen issue.
I use a modified kickstart file from an earlier manual installation
with a very basic filesystem setup. It fails with
"SystemError: vgcreate failed for VolGroup00".
2008 Mar 05
1
environment variables in kickstart
I have been looking for environment variables for the %post section of
kickstart.
Namely if I start my kickstart command with "linux
ks=http://serverip/ks.cfg"
is there an environment variable that has serverip that I can use in the
%post section?
Also is there a way to pass a command line argument to the %post section
when running
kickstart command as the above
2008 Feb 07
2
Network Installation of CentOS disk image via PXE
Hello all,
I've deployed new servers - installing new CentOS servers via PXE
booting using its iso distribution stored on an NFS server. For
certain server types; I'd like to install custom applications into a
server and then generate an image of that server, and deploy again via
PXE to another group of servers.
Wanted to find out if anyone can forward any pointers to papers or links
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