9 More Discussions You Might Find Interesting
1. Red Hat
Hello,
I want to delete a RAID configuration an old server has.
Since i haven't the chance to work with the specific raid controller in the past can you please help me how to perform the configuraiton?
I downloaded IBM ServeRAID Support CD but i wasn't able to configure the video card so i... (0 Replies)
Discussion started by: @dagio
0 Replies
2. UNIX Desktop Questions & Answers
clear
echo "vans, Rolland"
echo "Press in Your Keyboard to Quit"
echo -e "Please Enter Your Choice : \c"
read option
case $option in
I have created the corresponding information for each input on the display so...
My question is...
How do I display the corresponding information... (6 Replies)
Discussion started by: thriveforana
6 Replies
3. UNIX for Dummies Questions & Answers
This is in the beginning of the program:
clear
tput cup 1 20
echo "Welcome to UNIX I Final Assignment"
tput cup 4 3
echo -e "Who would you like to look up? \c"
tput cup 6 5
echo "vans, Rolland"
tput cup 8 5
echo "ones, Mildred"
tput cup 10 5
echo "mith, Julie"
tput cup 12 5
echo... (0 Replies)
Discussion started by: thriveforana
0 Replies
4. Solaris
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
5. AIX
Hello,
I have a scsi pci x raid controller card on which I had created a disk array of 3 disks
when I type lspv ; I used to see 3 physical disks ( two local disks and one raid 5 disk )
suddenly the raid 5 disk array disappeared ; so the hardware engineer thought the problem was with SCSI... (0 Replies)
Discussion started by: filosophizer
0 Replies
6. UNIX for Dummies Questions & Answers
I am having trouble understanding the difference between a passthrough device and a named device and when you would use one or the other to access equipment.
As an example, we have a tape library and giving the command
"camcontrol devlist" gives the following output:
akx# camcontrol... (1 Reply)
Discussion started by: thumper
1 Replies
7. Linux
Hi everyone.
I have a machine which upon to recently only had one hard disk. Now I have another one identical in size and speed and want create a raid set from those two.
The partition layout is that I have three partitions, first one for /boot, the second for / and then a huge LVM partition... (1 Reply)
Discussion started by: Sprellarinn
1 Replies
8. Filesystems, Disks and Memory
I've got a RedHat 9 box with LVM support in a 2.4.22 kernel. What I would like to do is take a set of empty files created with 'dd' and concatenate them into a volume group. I've done a good deal of googling, and it seems that this is something that can be done. But when I try to use 'pvcreate'... (3 Replies)
Discussion started by: deckard
3 Replies
9. UNIX for Advanced & Expert Users
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)
Discussion started by: malcom
1 Replies
lofs(7FS) File Systems lofs(7FS)
NAME
lofs - loopback virtual file system
SYNOPSIS
#include <sys/param.h>
#include <sys/mount.h>
int mount (const char* dir, const char* virtual, int mflag, lofs, NULL, 0);
DESCRIPTION
The loopback file system device allows new, virtual file systems to be created, which provide access to existing files using alternate
pathnames. Once the virtual file system is created, other file systems can be mounted within it, without affecting the original file sys-
tem. However, file systems which are subsequently mounted onto the original file system are visible to the virtual file system, unless or
until the corresponding mount point in the virtual file system is covered by a file system mounted there.
virtual is the mount point for the virtual file system. dir is the pathname of the existing file system. mflag specifies the mount options;
the MS_DATA bit in mflag must be set. If the MS_RDONLY bit in mflag is not set, accesses to the loop back file system are the same as
for the underlying file system. Otherwise, all accesses in the loopback file system will be read-only. All other mount(2) options are
inherited from the underlying file systems.
A loopback mount of '/' onto /tmp/newroot allows the entire file system hierarchy to appear as if it were duplicated under /tmp/newroot,
including any file systems mounted from remote NFS servers. All files would then be accessible either from a pathname relative to '/' or
from a pathname relative to /tmp/newroot until such time as a file system is mounted in /tmp/newroot, or any of its subdirectories.
Loopback mounts of '/' can be performed in conjunction with the chroot(2) system call, to provide a complete virtual file system to a
process or family of processes.
Recursive traversal of loopback mount points is not allowed. After the loopback mount of /tmp/newroot, the file /tmp/newroot/tmp/newroot
does not contain yet another file system hierarchy; rather, it appears just as /tmp/newroot did before the loopback mount was performed
(for example, as an empty directory).
Examples
lofs file systems are mounted using:
mount -F lofs /tmp /mnt
SEE ALSO
lofiadm(1M), mount(1M), chroot(2), mount(2), sysfs(2), vfstab(4), lofi(7D)
WARNINGS
Loopback mounts must be used with care; the potential for confusing users and applications is enormous. A loopback mount entry in
/etc/vfstab must be placed after the mount points of both directories it depends on. This is most easily accomplished by making the loop-
back mount entry the last in /etc/vfstab.
SunOS 5.10 10 Apr 2001 lofs(7FS)
Using loopback devices in RAID?