hardware

LUKS and intel aes-ni performance part 2

Lately I've bought laptop with Intel i7-3720QM. Laptop got 2 disks: SSD Vertex 120GB and original WD Scorpio 7200rpm hdd. I have to check LUKS performance of this setup ('cause I use LUKS on daily basis). And it looks like this (of course bonnie++ results):

HT on, WD Scorpio 320GB 7200rpm, lvm, ext4, no encryption:
1.96,1.96,e6430,1,1351607747,12G,,,,105857,13,47626,6,,,129126,7,222.6,5

Usb2 vs usb3 under linux

Lately I've been buying laptop for myself. And was wandering if I need one with usb3 ports. I've already got usb3 mobile 2'5 hdd, but I've thought that 5400rpm hdd doesn't really need usb3. Finally I've got laptop with usb3 so I have to run some tests ;).
Used bonnie++ on hdd connected to usb3 port and usb2 port. Here are results:

USB3:
1.96,1.96,e6430,1,1350798565,12G,,,,56682,14,10393,2,,,66004,3,85.6,1

USB2:
1.96,1.96,e6430,1,1350809066,12G,,,,35141,10,8398,2,,,37844,2,85.8,1

In quest of perfect laptop

Lately (for like 3 years), I've been looking for perfect laptop. I've been using 10+ of them during that period owned two, having three company ones. One of company laptops was almost perfect.
What is perfect laptop for me? Having those features:
* cpu with virtualization (to let me use windows VMs),
* cpu with AES (to let me use my luks crypted disks without loosing too much performance),
* gpu with vdpau support, which means nvidia card (with at least pure video feature set C),
* fast 300GB+ hdd – 7200 rpm, hybrid or ssd,

vSphere 5 hardware dependant iSCSI vs software iSCSI on Broadcom NetXtreme II 5709c

Recently I've been setting up vSphere 5 infrastructure with 2 iSCSI storages.

LUKS and intel AES extension performance

Finally I've just got cpu with AES-NI to play with. And finally I was able to check performance gain using hadrware with LUKS volumes.
Edit: most important info, tested CPU was Intel Xeon X5650.

First of all I've checked block device speed (which was 2 SAS 300GB RAID1 set) without encryption. Device has ext4 and I used bonnie++ as usual.

1.96,1.96,15744M,,,,179260,16,82453,8,,,234866,11,814.5,20

Setting RAID alerts with amCLI

All modern raid controllers comes with nice graphics interfaces, but this tools needs time to setup and resources to run (most of them are java based). But all LSI controllers (almost in every modern IBM x series or Fujitsu TX, RX series) got nice console tool to manage them (amCLI). It's even easier to set up mail alerts with this tool than with GUI, but manual for amCLI is rather lame.

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by Dr. Radut