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Feb
20
awarded  Citizen Patrol
Dec
8
comment linux vlan bridge feature backport to 2.6 kernels
@MichaelHampton Indeed.... if you don't have the code for your legacy nightmares, that would make you a Windows admin, wouldn't it?
Jun
3
awarded  Supporter
May
27
comment Very poor read performance compared to write performance on md(raid1) / crypt(luks) / lvm
@Android5360 Except that encryption (WRT symetric block ciphers) isn't slower than decryption. They're mathematically equivalent operations, the same speed in each direction. You're seeing the impact of caches, buffers and seek times - disk operations - not anything inherent in encryption of decryption (of symmetric block ciphers).
May
27
comment Very poor read performance compared to write performance on md(raid1) / crypt(luks) / lvm
Wonderful that your system does this, that, or the other, but you're seriously misinformed about encryption at a fundamental level. Here's a good rundown of the reason for the apparent speed difference between decryption and encryption on symmetric block ciphers, like those being discussed in this question.
May
27
comment Very poor read performance compared to write performance on md(raid1) / crypt(luks) / lvm
What I expect is the crypted raid to be as fast on reading as the non-crypted raid. Why? Why would you expect that?
May
27
comment Very poor read performance compared to write performance on md(raid1) / crypt(luks) / lvm
@poige Encryption is generally symetrical - equally fast in both directions. If you're experiencing faster decryption than encryption, it's probably actually an issue of your disk read being faster than your disk write.
Apr
23
comment Unrar local files to remote server
In addition to @SvW 's suggestion, do you have enough space to extract the files from one (or some) of the archives? Is there any reason you can't do this in stages, instead of extracting everything all at once?
Dec
24
awarded  Autobiographer
Dec
24
awarded  Teacher
Dec
24
answered CentOS | [root@hostname] does not show anymore?