network profile
| bio | website | |
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| location | ||
| age | ||
| visits | member for | 2 years, 8 months |
| seen | May 18 '11 at 2:35 | |
| stats | profile views | 61 |
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Sep 27 |
awarded | Yearling |
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May 14 |
awarded | Nice Answer |
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Sep 28 |
awarded | Yearling |
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Jul 6 |
awarded | Revival |
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Apr 12 |
comment |
Linux-based file replication: file-level or block-level? The trick with rsync is that one end will read the entire file to find changed blocks. You're talking a 10-30GB file. If you are going to do block-level synchronization, you absolutely want a layer that was keeping track of which remote blocks were stale as they were modified. Then a sync begins transmitting data almost instantly. I don't know how efficient DRBD is at this, but many storage vendors specialize in just this facet, even over a WAN, for disaster recovery. |
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Apr 12 |
comment |
PAM: how to enforce AD group membership during login We used something similar, but had purchased Quest Authentication System that made AD groups available under Linux. Then the above commands work as expected. Logins require membership in a specific group that is defined in AD. |
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Apr 12 |
comment |
How can I reduce resource usage when copying a large file?rsync will copy files locally. Think rsync --bwlimit=28000 foo.frm /bar/foo.frm and then watch it with iostat. I'm not sure why vmstat would tell you if you were saturating a drive. Look for %busy in iostat. |
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Apr 12 |
answered | How can I reduce resource usage when copying a large file? |
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Apr 10 |
answered | Suggestions needed to debug why ps -ef gets stuck |
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Apr 5 |
comment |
linux clustered Filesystem According to Oracle's page on OCFS2m (oss.oracle.com/projects/ocfs2), it is only available for Unbreakable Linux. I smell lock in and a desperate attempt to not support Red Hat or it's derivative, CentOS. I like it's list of features, just not its future. They seem to be doing the same thing with Lustre. That said, Red Hat is trying to lock people in with GFS, but I wasn't all that impressed under RHEL 5. |
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Apr 5 |
comment |
linux clustered Filesystem And GFS is supportable under RedHat Enterprise Linux, so odds are that you can find other system administrators who know it if you ever decide to move on. |
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Apr 5 |
answered | linux clustered Filesystem |
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Jan 26 |
answered | How do I make an RPM from a list of files? |
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Jan 26 |
answered | Mystery stack traces in /var/log/messages |
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Jan 8 |
answered | Linux that restores itself on each reboot |
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Dec 20 |
answered | Reasonable threshold for system interrupts/sec |
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Dec 20 |
comment |
way to roll back a large file renaming/move action I usually write a script even when I don't plan to undo it. I do it to make sure I understand the data before committing it. Database application developers do this to with data injest from a "dirty source" where the input is less than organized. Use a script to catch scenarios you hadn't anticipated. Still, hard links are absolutely the best way to go here. Instead of mv, use ln and all will be well. |
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Dec 11 |
comment |
Linux “locate” option not finding things Depending upon the distribution, this command might also get it to run automatically, once per day: ln -s /usr/bin/updatedb /etc/cron.daily/updatedb although most distributions would automatically put an entry in there. |
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Dec 2 |
answered | How to remotely install Linux via SSH? |
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Dec 1 |
comment |
Linux I/O buffering reference Alternatively, someone could approach LWN (lwn.net/op/AuthorGuide.lwn) and write this up as a story, "for minimal pay," but also recognition by their peers. |
