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visits member for 2 years, 11 months
seen Nov 26 at 19:58

Mar
26
comment SSH: one user logs in, other don't
What does /var/log/auth.log say about both users?
Mar
25
comment DNS Solution for secondaries in a shared hosting enviroment
You need to rephrase your Question, as the answer in your current form is obviously DNS CNAMEs, which you would have known if you were serious with hosting. So I guess this is a mistake in your question. Rephrase it!
Mar
15
comment Linux WAN failover simple solution needed
Waaah! This answer just rocks. Exactly what I was looking for. Shame on me for not coming up with it myself when rereading man route. Thanks!
Feb
15
comment Tuning Linux disk caching behaviour for maximum throughput
I have 20GB memory just for buffers, as my applications (base linux + vsftpd) use under 4GB (total 24GB). My backups are unter 20GB. If I can get them written into buffer and then written out to disk sequentially after the backup run, this would reduce the downtime of my backup source (virtual servers) significantly. PS: The server can come to a halt afterwards, no problem. It got 30 minutes to recover :)
Feb
15
comment Tuning Linux disk caching behaviour for maximum throughput
The filesystem was created with mkfs.xfs -l lazy-count=1,version=2,size=256m -i attr=2 -d sunit=512,swidth=1024 and is mounted with: rw,noatime,logbufs=8,logbsize=256k,osyncisdsync,delaylog,attr2,nobarrier,allocs‌​ize=256k
Feb
15
comment Tuning Linux disk caching behaviour for maximum throughput
Yes, I'm after write performance. The time it takes to fan out the backup to the backup slaves is none of my concerns. I also have a script in place for retransmission, should the primary backup server fail and the backups dont get through to the backup slaves. PS I've already read the link and tuned accordingly. Sorry for the mistake about free vs buffered vs total.
Feb
15
comment Tuning Linux disk caching behaviour for maximum throughput
@adaptr: Acutally, they are SATA2. And I was able to achieve the named throughput for sequential read/write on 10 Gigabyte files, sustained. I activated the caches in the hard disks and writeback in the controller. This is an unsafe state but as its only for backups that are mirrored out to other backup servers thats not a problem. Maximum throughput for the 10GE pipe is what I need.
Feb
15
comment Tuning Linux disk caching behaviour for maximum throughput
I'm using a heavily tuned XFS. More on in which regard its tuned in the comment above :)
Feb
15
comment Tuning Linux disk caching behaviour for maximum throughput
TOTALLY right. I'm synching virtual machine images (very small ones for compute nodes) which are down while synching. The app works like tar | ssh but using ftp. And well, the simulations need to run ... :)
Feb
8
comment View Desktop of all currently logged in Users on Windows Server
It's about viewing the Remote Desktop Sessions, not other sessions. We automated Mouse movement and want to show our "virtual users" working in ... like 4in1 on a Plasma :)