Does anyone know if there is free software that can keep 2 filesystem on remote machines , synced.
This will be part of our Disaster Recovery to keep one machine off site , which will take over should the need arise..
Thanks (6 Replies)
Hi Linux Admin Guys
My onsite server is always 15 min slow and seems like NTPD (Network Time Protocol (NTP) daemon) not running properly. can anyone suggest me how to rectify this problem? we can't seem to get NTP to properly sync the clock.
Any help is resolving the issue will be helpful.... (12 Replies)
I am trying to Install RHEL AS 4 on x86 pc, through VNC and got the below error, Am not pretty sure as how to resolve this. Can some one guide me through the process, or what might be missing....
Have Installed RHEL, many a times but cudnt find this out...
Wud appreciate an early reply ......... (0 Replies)
ok so I just installed fedora core 6 on my dell inspiron 700m and I go to boot into linux and I get this error. Has anyone seen this before?
I also had XP Pro and Vista installed on this pc prior to putting fedora core 6 on the machine. I'm trying to setup a triple boot system.
Please Help... (2 Replies)
Hi all,
I tried setting up RAID between 2 partitions and it was success.
If I write some things on /dev/md0, both partition got affected.
Then I stop the RAID, and I mounted one of my partition and I created a file in it.
Now I started the RAID (mdadm --assemble --scan)
What I expected... (1 Reply)
Hi,
first of all I'm 110% newbie, sorry for any mistake if I made it.
In my country there are no normal or active linux forums, so i found this forum.
Ok, that's for begining, but not for may real problem.
---------------------------------------------------
I am system administrator... (4 Replies)
HI All,
server stopped here, we are suspecting server crash, need install new OS.
Any suggestions on this. kindly help to us.
Thanks
Rajesh (0 Replies)
dear experts linux
i am using RHEL 5.5 run on a physical server.
i am front of a big trouble, the Rhel can't run correctly , it show me this error message in black screen:
reading all physical volumes. this my take a while ..
found volume group "VolGroup00" using metadata type lvm2
9... (1 Reply)
Discussion started by: wassimpb
1 Replies
LEARN ABOUT DEBIAN
scsi-spin
scsi-spin(8) System Manager's Manual scsi-spin(8)NAME
scsi-spin - spin up and down a SCSI device
SYNOPSIS
scsi-spin [-options...] [device]
DESCRIPTION
scsi-spin let the user to manually spin up and down a SCSI device.
This command is particularly useful if you've got noisy (or hot) drives in a machine that you rarely need to access. This is not the same
as the kernel patch that's floating around that will automatically spin down the drive after some time. scsi-spin is completely manual,
and spinning down a drive that's in use, especially the one containing the scsi-spin binary, is probably a really bad idea.
To avoid running in trouble with such cases, scsi-spin verifies that the device to work on is not currently in use by scanning the mounted
file system description file for a partition living on it and issue an error if this the case.
OPTIONS -u, --up
spin up device.
-d, --down
spin down device.
-e, --loej
load or eject medium from drive (use along with -u or -d )
-w, --wait=[n]
wait up to n seconds for the spin up/down command to complete. Default is to return immediately after the command was sent to the
device. Either repeat -w n times or set n to define the time to wait before to report a timeout.
-l, --lock
prevent removal of medium from device.
-L, --unlock
allow removal of medium from device.
-I, --oldioctl
use legacy ioctl interface instead of SG_IO to dialog with device (could not be supported on all platforms). -e and -w are not
allowed with this option.
-v, --verbose=[n]
verbose mode. Either repeat -v or set n accordingly to increase verbosity. 1 is verbose, 2 is debug (dump SCSI commands and Sense
buffer).
-f, --force
force spinning up/down the device even if it is in use.
-n, --noact
do nothing but check if the device is in use.
-p, --proc
use /proc/mounts instead of /etc/mtab to determine if the device is in use or not.
device the device is any name in the filesystem which points to a SCSI block device (sd, scd) or generic SCSI device (sg). See section
below.
SCSI devices naming convention
Old kernel naming convention
It is typically /dev/sd[a-z] , /dev/scd[0-9]* or /dev/sg[0-9]*.
scsidev naming convention
It is typically /dev/scsi/s[rdg]h[0-9]*-e????c?i?l? or /dev/scsi/<aliasname>.
devfs naming convention
It is typically /dev/scsi/host[0-9]/bus[0-9]/target[0-9]/lun[0-9]/disc (same for cd and generic devices) or short name
/dev/sd/c[0-9]b[0-9]t[0-9]u[0-9] when devfsd "new compatibility entries" naming scheme is enabled.
SEE ALSO scsiinfo(8), sg_start(8), sd(4), proc(5),
AUTHORS
Eric Delaunay <delaunay@debian.org>, 2001
Rob Browning <rlb@cs.utexas.edu>, 1998
03 September 2001 scsi-spin(8)