868 reputation
410
bio website deranfangvomende.wordpress.co…
location Germany
age
visits member for 3 years, 3 months
seen yesterday

UNIX Sysadmin, Server hugger and cluster fixer, Monitoring addict (Check_MK). Working for you freelance as Consultant for Troubleshooting and Training. Training for Monitoring, Unix/Storage, Ceph.

active LOPSA member (www.lopsa.org)

Trying to build the virtual paradise.


Mar
23
comment How can I validate a ZFS snapshot image residing on a backup system?
You taught me two things in one post. Validating a zfs dump and storing a ftp file into a pipe. I'll remember this day long after forgetting how to do either :)
Mar
14
answered Why is RAID 1+6 not a more common layout?
Mar
13
answered What happens when I “offline” a disk and is there a difference between diskpart.exe and the disk management snap-in?
Feb
22
comment How do I disable autovacuum on Postgres 8.1.22?
upvoted question since the answers are so inconclusive useless. vacuum full was the right measure at 8.1 for the task and he'd not need to run a loop killing autovacuum if it wasn't still being enabled. he also said he's in progress of migrating to a new version at that exact time. learn to read please.
Jan
24
revised Displaying a remote SSL certificate details using CLI tools
added 92 characters in body
Jan
24
answered Displaying a remote SSL certificate details using CLI tools
Jan
19
revised Multiple physical volumes in a block device
added 313 characters in body
Jan
7
comment What causes repeated linux NFS client side RPC credential refreshing?
iirc noac also just concerns credential caching, so writes to permission metadata are immediate, no "writes". Didn't edit since i'm not all sure now.
Jan
7
answered Allignment of ext3 partition on LVM RAID volume group
Jan
7
answered Multiple physical volumes in a block device
Jan
7
comment How to find the physical volume(s) that hold a logical volume in LVM
One thing, it doesn't work with lvm mirrors enabled. There it'll just show "lvname_rimage0,lvname_rimage1" instead of the underlying disks. (not your fault, the command and the mirroring itself is badly designed). Even then it's still good to spot unmirrored lv's. Just be careful not to fully rely on the output because the above.
Dec
11
awarded  Yearling
Sep
27
comment Best compression for ZFS send/recv
Thanks a lot for this post. Looking at zfs send more closely I very quickly got the feeling that it has a bad behaviour (aka "design") when sending to a latency-bound target. After about a dozen results telling that zfs can't possibly ever be to blame for anything. I am very grateful you took the time to look into it and posted your results.
Sep
24
awarded  Autobiographer
Sep
24
comment What causes repeated linux NFS client side RPC credential refreshing?
the readdirplus issue has caused issues to many people, it is incredibly stupid design to turn off the feature when it's most needed. But as to the issue, I think this is caused by either "noac" or wrong "actimeo" settings.
Sep
24
answered OCSP validation - unable to get local issuer certificate
Sep
2
comment nagios contact groups to check_mk
Puzzled about one thing: Why are you doing 4) and 5) and not just 5)
Aug
31
revised nagios contact groups to check_mk
fix missing word
Aug
31
answered nagios contact groups to check_mk
Aug
13
comment What is the easiest way to upgrade my existing Perl 5.14 to Perl 5.16 on FreeBSD 9 using the ports system?
Thank you a lot for this walkthrough. More helpful than "use this command that works for me, and lets not talk about the other cases" :)