On Wed, Jul 22, 2009 at 10:54 PM, Matthew
Dillondil...@apollo.backplane.com wrote:
It should, except for the shutdown script you probably want to
try to kill the other scripts frist and then do a lockf -k -t 10
to pick up the hmc script if/when the others finish terminating,
with
:
:They don't get killed when the 'hammer mirror-stream processes is killed.
:How do I kill them?
:
:Thanks
:
:Siju
The kernel helper threads are unrelated to the mirroring. They
can't be killed nor would we want them to be. They exit when the
filesystem is unmounted.
On Thu, Jul 23, 2009 at 2:40 PM, Matthew
Dillondil...@apollo.backplane.com wrote:
:
:They don't get killed when the 'hammer mirror-stream processes is killed.
:How do I kill them?
:
:Thanks
:
:Siju
The kernel helper threads are unrelated to the mirroring. They
can't be killed
On Tue, Jul 21, 2009 at 10:19 PM, Matthew
Dillondil...@apollo.backplane.com wrote:
lockf gets an exclusive lock on the specified lock file and runs
the specified program while holding the lock. So if you run lockf
wieth the same lock file 50 times in parallel, the programs you run
:10 1 * * * (cd /root/adm; /usr/bin/lockf -k -t 0 .lockfile ./hms)
:
:and I put this in the /etc/rc.shutdown
:
:(cd /root/adm; /usr/bin/lockf -k -t 0 .lockfile ./hmc)
:
:Will this do the trick ? :-)
:
:Thanks again
:
:--Siju
It should, except for the shutdown script you probably want to
On Thu, Jun 25, 2009 at 8:55 PM, Matthew
Dillondil...@apollo.backplane.com wrote:
mirror-stream only exits if the connection is lost so it is still a
good idea to check-start it with cron. I usually use lockf for that
and a simple script. Also make sure it isn't being verbose when
:After reading the man page for 'lockf' I did not get how to implement
:it actually. Are '.lockmirror' and 'do_mirror' scripts? If so Please
:can I get to see them?
:
:thanks
:
:--Siju
lockf gets an exclusive lock on the specified lock file and runs
the specified program while
Hi,
Since the Installer allows only one of either hammer or UFS and since
RAID parity writing can be too long for 2 500 GB disks on mirror
after an unclean shutdown I followed these steps to create a backup
server using mirroring instead of RAID1. this purely my idea after a
lot of trial and
It seems reasonable. You probably don't have to use the mirroring
feature to backup the backup since they are local disks but it is
fun to play with.
If you use mirror-stream instead of mirror-copy you can control the
bandwidth used by the mirroring operation (so as not to
On Thu, Jun 25, 2009 at 8:55 PM, Matthew Dillondil...@apollo.backplane.com
null mounts aren't quite as useful for PFS slaves since a null mount
will lock-in the slave TID instead of tracking it. In that case a
second softlink might be reasonable instead of using a NULL mount.
Could
On Thu, Jun 25, 2009 at 8:55 PM, Matthew
Dillondil...@apollo.backplane.com wrote:
In anycase, if redundancy is that important to you for the backup box
then I recommend a combination of a SATA SSD (SATA-based solid state
flash drive) and two hard drives. Put the main system on the SSD
:Thanks for the info Dillon on the pfs naming convention and idea about
:mirror stream.
:Since you recommended SSDs before I tried to get them from vendors I
:know but most of them haven't even heard about it ( I am from Kerala,
:India ).
:
:Will a USB Flash drive serve the same purpose?
:Could you please also tell me how to create a second softlink for the slave=
:?
:
:thanks again
:
:--Siju
I meant just make /blah/Data a softlink to /blah/pfs/Data, so the PFS
masters are all in /blah/pfs for organizational purposes.
slave mode mirroring is still pretty basic
13 matches
Mail list logo
