03-29-2003
how to assign same mount point for file systems mounted on physical disks
We have 6 hard disks attached to the hardware. Of this 2 hard disks are of 9 GB each.
Now I want combine both the same in such a way that i see a combined entry in the output of df -k .
The steps I follow are
1. Create partition on hard disks (Using format partition)
2. Run newfs -v for the partition
3. create an entry in /etc/vsftab (with common mount point)
3. mount the file system.
When I do this for the 2nd hard disk with same mount point , it does not allow stating mountpoint busy (naturally earlier one already mounted).
So I suppose same mount point may not be assigned to different file system .
So think there should be a way to have a single file system for partitions from 2 physical hard disks . I don't know how.
Can anybody help.
Thanks in advance.
Hitesh
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello,
I would like to know if there are commands that can be used to monitor the state of physical disks (including RAID) under AIX and SUN unix platforms?
Thank you in advance. (4 Replies)
Discussion started by: VeroL
4 Replies
2. UNIX for Dummies Questions & Answers
Can anyone tell me what Vertias is?
Is it free? What is it used for exactly?
Thank you in advance. (1 Reply)
Discussion started by: VeroL
1 Replies
3. UNIX for Dummies Questions & Answers
Hi
I am accessing a file on nfs mounted device, after completing using of the file, i am tring to restore the access time and modification times of the file.
So i got the previous modified time of the file using stat() function and trying to set the date and time for the file, To set these... (6 Replies)
Discussion started by: deepthi.s
6 Replies
4. UNIX for Advanced & Expert Users
Hi,
Is it possible to do hard link between the mount point of file some structure to the sftp account of some other server ? If possible then what could be the behavior of link properties? Is it could be the same as we found in our environment (unix/linux).
Even if we do such link , then it... (1 Reply)
Discussion started by: posix
1 Replies
5. AIX
This is the report I got running the comand rptconf, but I would like to know what is the capacity of the disks installed into our server power 6 with AIX
System Model: IBM,7778-23X
Machine Serial Number: 1066D5A
Processor Type: PowerPC_POWER6
Processor Implementation Mode: POWER 6... (6 Replies)
Discussion started by: cucosss
6 Replies
6. Solaris
Hi ,
I am completely stuck and not getting any clue to come out this . So looking for help
Q : I have salaries 10 in server with that Dell Equallogic storage connected.
in dell Equlalogic in i have 70 TB storage .
I created 7 volumes 10 TB each .
In Solaries 10 i have syslog server i... (1 Reply)
Discussion started by: Roahn Tiwari
1 Replies
7. Solaris
So,
We have a Netapp storage solution. We have Sparc T4-4s running with LDOMS and client zones in the LDOMS, We are using FC for storage comms. So here's the basic setup
FC luns are exported to the primary on the Sparc box. using LDM they are then exported to the LDOM using vdisk. at the... (4 Replies)
Discussion started by: os2mac
4 Replies
8. Shell Programming and Scripting
Hi
I need to have a piece of code that check if all file systems are mounted or not.
I have to pieces of information like the output of the bdfcommand, and the file /etc/fstab.
The first is:
bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 2097152 266656... (3 Replies)
Discussion started by: fretagi
3 Replies
9. Shell Programming and Scripting
Hi
I have the following piece of code, running on a solaris 10 O.S., that is not working for NFS file systems:
for vol in `grep -E 'vxfs|ufs|nfs' /etc/vfstab | egrep -v '^#' | awk '{ print $3 }'`
do
if df -k $vol | grep $vol > /dev/null
then
outputOK "Filesystem: $vol mounted"
else... (1 Reply)
Discussion started by: fretagi
1 Replies
10. UNIX for Beginners Questions & Answers
How to create a new mount point with 600GB and add 350 GBexisting mount point
Best if there step that i can follow or execute before i mount or add diskspace IN AIX
Thanks (2 Replies)
Discussion started by: Thilagarajan
2 Replies
CCD(4) BSD Kernel Interfaces Manual CCD(4)
NAME
ccd -- Concatenated disk driver
SYNOPSIS
pseudo-device ccd [count]
DESCRIPTION
The ccd driver provides the capability of combining one or more disks/partitions into one virtual disk.
This document assumes that you're familiar with how to generate kernels, how to properly configure disks and pseudo-devices in a kernel con-
figuration file, and how to partition disks.
Note that the 'raw' partitions of the disks must not be combined. Each component partition should be offset at least one cylinder from the
beginning of the component disk. This avoids potential conflicts between the component disk's disklabel and the ccd's disklabel. The kernel
will only allow component partitions of type FS_CCD. But for now, it allows partition of all types since some port lacks support of an on-
disk BSD disklabel. The partition of FS_UNUSED may be rejected because device driver of component disk will refuse it.
In order to compile in support for the ccd, you must add a line similar to the following to your kernel configuration file:
pseudo-device ccd 4 # concatenated disk devices
The count argument is how many ccds memory is allocated for at boot time. In this example, no more than 4 ccds may be configured.
A ccd may be either serially concatenated or interleaved. To serially concatenate the partitions, specify the interleave factor of 0.
If a ccd is interleaved correctly, a ``striping'' effect is achieved, which can increase performance. Since the interleave factor is
expressed in units of DEV_BSIZE, one must account for sector sizes other than DEV_BSIZE in order to calculate the correct interleave. The
kernel will not allow an interleave factor less than the size of the largest component sector divided by DEV_BSIZE.
Note that best performance is achieved if all component disks have the same geometry and size. Optimum striping cannot occur with different
disk types.
Also note that the total size of concatenated disk may vary depending on the interleave factor even if the exact same components are concate-
nated. And an old on-disk disklabel may be read after interleave factor change. As a result, the disklabel may contain wrong partition
geometry and will cause an error when doing I/O near the end of concatenated disk.
There is a run-time utility that is used for configuring ccds. See ccdconfig(8) for more information.
WARNINGS
If just one (or more) of the disks in a non-mirrored ccd fails, the entire file system will be lost.
FILES
/dev/{,r}ccd* ccd device special files.
SEE ALSO
config(1), MAKEDEV(8), ccdconfig(8), fsck(8), mount(8), newfs(8)
HISTORY
The concatenated disk driver was originally written at the University of Utah.
BSD
March 5, 2004 BSD