03-05-2012
10 More Discussions You Might Find Interesting
1. Solaris
hai all,
hope you people will guide me.
please suggest me how find an errored disk in a ssa-100 array.
what is the error message we get , when a disk fails and where
is it logged.
iam using solaris 8 version.
please help me (2 Replies)
Discussion started by: raj.soladm
2 Replies
2. Solaris
I recently installed two new hard drives onto an OpenSolaris v5.11 machine. I need to format the two disks.
I tried the format command. It asks me for the number of data cylinders and alternate cylinders.... <see below>
admin@minime-28:/dev/rdsk# format
Searching for disks...done
... (9 Replies)
Discussion started by: sqa777
9 Replies
3. Solaris
Hello all,
I was hoping to use a spare NAS as a ZFS fileserver and try a few things.
Unfortunately it has a huge raid for data, but a small 1G system disk. As I want to use the kernel CIFS server, I need OpenSolaris, which doesn't install without all the bloated Gnomestuff (oh well)
So I... (2 Replies)
Discussion started by: PatrickBaer
2 Replies
4. UNIX for Dummies Questions & Answers
Hello,
I need to find the total allocated disk space for the home directory.
How can i find that in unix?(in GB).
Thanks. (4 Replies)
Discussion started by: kailash19
4 Replies
5. AIX
Hi,
I would like to know how to find out disk capacity if it is assigned from the storage as a lun.
as per below command , I am unable to find out disk capacity.
$ bash
bash-3.00$ lspv
hdisk1 0001579a7fa3c086 None
$ lscfg -vl hdisk1
hdisk1 ... (8 Replies)
Discussion started by: manoj.solaris
8 Replies
6. Red Hat
Hi,
I have an HP ProLiant DL360 server with dual boot OS - CentOS and SuSE. Now the server has a motherboard issue.
I move the dual OS disk AAA from the dead server to an identical server and mount it as a secondary disk.
Question: How can I transfer files on disk AAA to the new server?... (1 Reply)
Discussion started by: aixlover
1 Replies
7. HP-UX
Hi,
I have two disk in a machine
# ioscan -funC disk
Class I H/W Path Driver S/W State H/W Type Description
==================================================================
disk 0 0/2/1/0.0.0.0.0 sdisk CLAIMED DEVICE HP DH072ABAA6
... (4 Replies)
Discussion started by: ericbj
4 Replies
8. Red Hat
I need to find available disk space for /home.
$ df /home
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mahhh/VolGroup11-LogVol00
32281452 45028 26034172 15% /
$df /home |tail -1| awk '{print $4}'
15%
The above result shows the... (5 Replies)
Discussion started by: Anu_1
5 Replies
9. Red Hat
Hi Masters,
How to find out the failed disk in redhat linux (OR)
How to decalare whether our hard disk goes bad ?
My option is:
dmesg | grep "failed"
check in /var/log/messages with the kernel error.
Please corrrect me if im wrong.
And also i heard "smartctl" command. But it's... (2 Replies)
Discussion started by: abhay1983
2 Replies
10. Emergency UNIX and Linux Support
In Our Production server I/O was very high, I Recived mail that Disk I/O was high, is it possible how to find which process Used this much I/O ?
Iam Using Ubuntu server 12.04.
Linux 3.9.3-x86_64-server33 (Li473-1200) 07/23/2014 _x86_64_ (8 CPU)
12:05:01 AM DEV ... (5 Replies)
Discussion started by: babinlonston
5 Replies
RAM(4) Kernel Interfaces Manual RAM(4)
NAME
ram - ram disk driver
SYNOPSIS
/sys/conf/SYSTEM:
NRAM ram_size # RAM disk size (512-byte blocks)
major device number(s):
block: 3
minor device encoding:
must be zero (0)
DESCRIPTION
The ram pseudo-device provides a very fast extended memory store. It's use is intended for file systems like /tmp and applications which
need to access a reasonably large amount of data quickly.
The amount of memory dedicated to the ram device is controlled by the NRAM definition in units of 512-byte blocks. This is also patchable
in the system binary through the variable ram_size (though a patched system would have to be rebooted before any change took effect; see
adb(1)). This makes it easy to test the effects of different ram disk sizes on system performance. It's important to note that any space
given to the ram device is permanently allocated at system boot time. Dedicating too much memory can adversely affect system performance
by forcing the system to swap heavily as in a memory poor environment.
The block file accesses the ram disk via the system's buffering mechanism through a buffer sharing arrangement with the buffer cache. It
may be read and written without regard to physical disk records. There is no `raw' interface since no speed advantage is gained by such an
interface with the ram disk.
DISK SUPPORT
The ram driver does not support pseudo-disks (partitions). The special files refer to the entire `drive' as a single sequentially
addressed file.
A typical use for the ram disk would be to mount /tmp on it. Note that if this arrangement is recorded in /etc/fstab then /etc/rc will
have to be modified slightly to do a mkfs(8) on the ram disk before the standard file system checks are done.
FILES
/dev/ram block file
/dev/MAKEDEV script to create special files
/dev/MAKEDEV.local script to localize special files
SEE ALSO
hk(4), ra(4), rl(4), rk(4), rp(4), rx(4), si(4), xp(4) dtab(5), autoconfig(8)
DIAGNOSTICS
ram: no space. There is not enough memory to allocate the space needed by the ram disk. The ram disk is disabled. Any attempts to access
it will return an error.
ram: not allocated. No memory was allocated to the ram disk and an attempt was made to open it. Either not enough memory was available at
boot time or the kernel variable ram_size was set to zero.
BUGS
The ram driver is only available under 2.11BSD.
3rd Berkeley Distribution Januray 27, 1996 RAM(4)