Good Morning all,
I just have a quick question, on some systems I am working with Software Raid Level 0 devices.
Yes, I know, this is not a good idea, but it was requested :-(
Now, due to a new requirement, I need to add a second internal disk to the system, but with adding the new disk,... (1 Reply)
Hello Lunix people,
I am looking for Raid software or solution besides Veritas. Veritas has some great software but are way too costly. Does anyone know of good raid software that but NOT Veritas. I need the funcations but not the cost. (7 Replies)
Hi all,
I m just trying using software RAID in RHEL 4, without problem , then i wanna simulate if disk 1 is fail (thereis an bootloader), i plug off my 1st disk. My problems is the second disk cannot boot? just stuck in grub, the computer is hang. Sorry for poor concept in RAID? I use a RAID 1.... (0 Replies)
Hi!
A couple of months ago a disk failed in our JBOD cabinett and I have finally got a new disk to replace it with. It was a RAID 0 so we have to create and configure the whole thing again. First we thought of RAID 1+0 but it seems you can't do this with LVM. If you read my last thread, you can... (0 Replies)
Hey,
I have worked with Linux for some time, but have not gotten into the specifics of hard drive tuning or software RAID. This is about to change. I have a Dell PowerEdge T105 at home and I am purchasing the following:
1GBx4 DDR2 ECC PC6400 RAM
Rosewill RSV-5 E-Sata 5 bay disk enclosure... (6 Replies)
hi friends,
I am having issues with adding a spare device to a failed array.
I have created RAID 1 with 3 partitions using mdadm command. Later I added a spare with
mdadm --add /dev/md0 /dev/sdb6
This works fine and when I check this with mdadm --detail command it just sits there as a spare... (7 Replies)
We have configured software based RAID5 with LVM on our RHEL5 servers. Please let us know if its good to configure software RAID on live environment servers. What can be the disadvantages of software RAID against hardware RAID (4 Replies)
Server Model: T5120 with 146G x4 disks.
OS: Solaris 10 - installed on c1t0d0.
Plan to use software raid (veritas volume mgr) on c1t2d0 disk.
After format and label the disk, still not able to detect using vxdiskadm.
Question:
Should I remove the hardware raid on c1t2d0 first?
My... (4 Replies)
Discussion started by: KhawHL
4 Replies
LEARN ABOUT BSD
disktab
DISKTAB(5) File Formats Manual DISKTAB(5)NAME
disktab - disk description file
SYNOPSIS
#include <disktab.h>
DESCRIPTION
Disktab is a simple date base which describes disk geometries and disk partition characteristics. The format is patterned after the term-
cap(5) terminal data base. Entries in disktab consist of a number of `:' separated fields. The first entry for each disk gives the names
which are known for the disk, separated by `|' characters. The last name given should be a long name fully identifying the disk.
The following list indicates the normal values stored for each disk entry.
Name Type Description
ns num Number of sectors per track
nt num Number of tracks per cylinder
nc num Total number of cylinders on the disk
b0 str Filename of block zero primary bootstrap for device
ba num Block size for partition `a' (bytes)
bd num Block size for partition `d' (bytes)
be num Block size for partition `e' (bytes)
bf num Block size for partition `f' (bytes)
bg num Block size for partition `g' (bytes)
bh num Block size for partition `h' (bytes)
fa num Fragment size for partition `a' (bytes)
fd num Fragment size for partition `d' (bytes)
fe num Fragment size for partition `e' (bytes)
ff num Fragment size for partition `f' (bytes)
fg num Fragment size for partition `g' (bytes)
fh num Fragment size for partition `h' (bytes)
pa num Size of partition `a' in sectors
pb num Size of partition `b' in sectors
pc num Size of partition `c' in sectors
pd num Size of partition `d' in sectors
pe num Size of partition `e' in sectors
pf num Size of partition `f' in sectors
pg num Size of partition `g' in sectors
ph num Size of partition `h' in sectors
se num Sector size in bytes (default 512)
sf bool supports bad144-style bad sector forwarding
so bool partition offsets in sectors
ty str Type of disk (e.g. removable, winchester)
Disktab entries may be automatically generated with the diskpart program.
FILES
/etc/disktab
SEE ALSO newfs(8), diskpart(8), getdiskbyname(3)BUGS
This file shouldn't exist, the information should be stored on each disk pack.
4.2 Berkeley Distribution May 17, 1986 DISKTAB(5)