Recent content by hastala

i had set up an ESX Server infrastructure 1 1/2 years ago for a company, for virtualizing their development environment, so a few questions come to my mind: - you're sure it runs on your hardware? - if i remember correctly, ESX can't handle RAID by itself. normally, a real RAID controller is...

@Bones: wow, thanks for the extensive testing!!! these WD 640, are they better than Samsungs HD642JJ? I see your RAID is performing slightly better that mine... is this software raid or do you have a real HW card for that? @NeuronN: i wouldn't like trying something that you say is...

22% cpu usage i mentioned was while bonnie++ wrote 3,4GB in blocks (see my 2nd post for the whole bonnie++ output) i'm using 256bit aes-cbc, here's how i encrypted the array: cryptsetup -c aes-cbc-essiv:sha256 -y -s 256 luksFormat /dev/md0 but your test setup is not in a software raid...

i did one more test, so here's hdparm -tT of the relevant drives for comparison: 1) single drive of the RAID 5 array /dev/sdb: Timing cached reads: 1524 MB in 2.00 seconds = 762.25 MB/sec Timing buffered disk reads: 344 MB in 3.01 seconds = 114.17 MB/sec 2) unencrypted RAID 5...

This is hdparm for the encrypted volume, looks like the reads are really bad now, can that be normal for the encrypted volume? root@godfather:/content# hdparm -tT /dev/mapper/md0_crypt /dev/mapper/md0_crypt: Timing cached reads: 1544 MB in 2.00 seconds = 772.35 MB/sec Timing...

Hi, i've freshly installed latest Ubuntu (Hardy Heron) to my new PC and i'd like to find out if the RAID 5 performance i get is sufficient. My system: AMD 4850e (2 x 2,5 Ghz), not OC'd Asus M3A-H/HDMI My RAID 5: 4 x Samsung HD642JJ, connected directly to the mobo (using AHCI option)...