The traditional thoughts on ZFS are to have arrays which are a power-of-2 when it comes to number of disks. That means 2, 4, 8, etc. But for raidz1, that would be 3, 5, 9. For my choice of raidz2, it would be 4, 6, and 10. In the system I’m building up now, I have an 8-port LSI SATA/SAS 9211-8i 6Gb/s card. I can add two more HDD by attaching them to […]
ZFS: raidz2 with 8 or 10 disks? Read More »
My gateway is dying. My file server is getting full. Over the past few weeks, I’ve been dealing with aging infrastructure. My development server started acting up and was showing signs of age. This aging desktop box contained 80GB HDD, which means it’s probably 6 or 7 years old. That’s getting on in age. It’s been replaced by a much gruntier server. After completeing that work, I have to consider my gateway, which
Gateway getting old; File server getting full Read More »
I was trying to recompile sysutils/bacula-client on a FreeBSD 8.4 jail when I encountered some perplexing link errors. It took me a while to figure it out, but with the help of some IRC conversation, we figured it out. I started off by deleting the old (quite old) port: bacula-client-5.0.3 Then I recompiled: cd /usr/ports/sysutils/bacula-client && make install clean The errors in question are: I tried recompiling a few ports, such as gettext.
Compiling bacula client gives link errors Read More »
I recently upgraded a jail server from FreeBSD 8.2 to FreeBSD 8.4. This stopped various jails from starting their own instances of PostgreSQL. The messages in the logs were: Jul 9 14:48:48 building postgres[40785]: [2-1] FATAL: could not create shared memory segment: Function not implemented Jul 9 14:48:48 building postgres[40785]: [2-2] DETAIL: Failed system call was shmget(key=5432001, size=12099584, 03600). In my jails, I was seeing: $ sysctl security.jail.sysvipc_allowed security.jail.sysvipc_allowed: 0 Looking at my
FATAL: could not create shared memory segment: Function not implemented Read More »
I recently upgraded a jail server from FreeBSD 8.2 to 8.4, and part of that process involved recompiling all of the applications. Along the way, nrpe on one jail stopped working. Nagios was reporting: CHECK_NRPE: Socket timeout after 10 seconds. Trying from the command line gave: $ /usr/local/libexec/nagios/check_nrpe2 -H -H dbclone.example.org -c check_pgsql -t 1 CHECK_NRPE: Socket timeout after 1 seconds. Other jails worked just fine: $ /usr/local/libexec/nagios/check_nrpe2 -H building.unixathome.org -c check_pgsql -t
nrpe: Could not read request from client, bailing out… Read More »
When you first get your APC 7900, you won’t be able to talk to it. Here is how I configured mine. Assign an IP adress to the APC 7900 To assign an IP address to an APC 7900: # arp -s 10.0.0.128 00:C0:B7:78:8A:7E # ping -s 113 10.0.0.128 PING 10.0.0.128 (10.0.0.128): 113 data bytes 121 bytes from 10.0.0.128: icmp_seq=0 ttl=255 time=91.755 ms 121 bytes from 10.0.0.128: icmp_seq=1 ttl=255 time=4.165 ms 121 bytes from
Configuring and assigning an IP address to an APC 7900 Read More »
The other day, I disconnected the ethernet cable from my gateway to reroute the cable. Then, perhaps coincidentally, I started seeing these entries: Jul 2 15:19:57 bast kernel: fxp0: discard frame w/o leading ethernet header (len 4294967294 pkt len 4294967294) Jul 2 15:28:01 bast kernel: fxp0: discard frame w/o leading ethernet header (len 4294967294 pkt len 4294967294) Jul 2 15:28:02 bast kernel: fxp0: discard frame w/o leading ethernet header (len 4294967294 pkt len
discard frame w/o leading ethernet header Read More »
After upgrading subversion on my svn server, I started seeing this errors from viewvc: An Exception Has Occurred Python Traceback Traceback (most recent call last): File “/usr/local/viewvc/lib/viewvc.py”, line 4827, in main request.run_viewvc() File “/usr/local/viewvc/lib/viewvc.py”, line 251, in run_viewvc self.rootpath = vclib.svn.canonicalize_rootpath(rootpath) File “/usr/local/viewvc/lib/vclib/svn/__init__.py”, line 39, in canonicalize_rootpath rootpath = _canonicalize_path(rootpath) File “/usr/local/viewvc/lib/vclib/svn/__init__.py”, line 23, in _canonicalize_path import svn.core File “/usr/local/lib/python2.7/site-packages/svn/core.py”, line 26, in from libsvn.core import * File “/usr/local/lib/python2.7/site-packages/libsvn/core.py”, line 26, in _core
viewvc errors after upgrading subversion Read More »
I’ve been a fan of PostgreSQL since 2000 when I switched to it from MySQL. I wanted stored procedures and functions. I got that with PostgreSQL. I was used to having such features from my years working with other big databases such as DB2, Oracle, and Sybase. I’ve been moving towards using the custom format of pg_dump. In conjunction with that, I’ve been using pg_restore for testing those dumps. As part of my
pg_restore: [custom archiver] could not read from input file: end of file Read More »
I kept seeing these messages: Jun 12 04:09:18 nyi sshd[94523]: Authentication tried for dan with correct key but not from a permitted host (host=dbclone.example.org, ip=10.6.0.9). Jun 12 04:09:18 nyi sshd[94523]: Authentication tried for dan with correct key but not from a permitted host (host=dbclone.example.org, ip=10.6.0.9). I’ve been seeing them for a long time. How long? Three years. I didn’t think it was that long. But back in July 2010 I mentioned it. After
Authentication tried for dan with correct key but not from a permitted host Read More »