Sponsored Content
Full Discussion: Determining Disk Speed
Top Forums UNIX for Dummies Questions & Answers Determining Disk Speed Post 302711137 by Corona688 on Friday 5th of October 2012 12:06:01 PM
Old 10-05-2012
The maximum transfer rate of SATA 2 is, ideally, around 300 megabytes per second. You're beating that by 30% in the real world so it really does look like you're getting SATA 3 speeds.

Just because a drive uses a SATA 3 port doesn't mean it's capable of its full 600 megabytes per second, of course. Whether you're reaching the true maximum speed of your drive, I can't say without knowing what it is and looking in its manual. The limits of your southbridge and memory are also important.

Last edited by Corona688; 10-05-2012 at 01:22 PM..
 

9 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

determining ethernet port speed in solaris

i purchased, what was labeled as a 4-port fast ethernet sbus card from ebay. i installed it in my ultra1, and it seems to be working fine. how can i determine if the card is infact a fast ethernet card vs. the standard ethernet 4-port card? (7 Replies)
Discussion started by: xyyz
7 Replies

2. AIX

AIX - Determining link speed

I am trying to find a command to return the "link" speed of the networks installed on AIX. ifconfig - gives me where the link is up and the duplex setting. I need to determine for example if the ethernet connection is 10, 100, 1000 Mbs or what the current speed is based on the network media... (3 Replies)
Discussion started by: karlgo
3 Replies

3. Filesystems, Disks and Memory

dmidecode, RAM speed = "Current Speed: Unknown"

Hello, I have a Supermicro server with a P4SCI mother board running Debian Sarge 3.1. This is the "dmidecode" output related to RAM info: RAM speed information is incomplete.. "Current Speed: Unknown", is there anyway/soft to get the speed of installed RAM modules? thanks!! Regards :)... (0 Replies)
Discussion started by: Santi
0 Replies

4. Solaris

determining miniroot revision

Hi guys I have a bunch of x4100's x4140's etc with solaris 10 update4 running on them but I suspect that when a lot of these boxes were originally built, the jumpstart process used an update2 miniroot, now as far as i understand it, the miniroot used at jumpstart is the miniroot that stays on... (1 Reply)
Discussion started by: hcclnoodles
1 Replies

5. Filesystems, Disks and Memory

data from blktrace: read speed V.S. write speed

I analysed disk performance with blktrace and get some data: read: 8,3 4 2141 2.882115217 3342 Q R 195732187 + 32 8,3 4 2142 2.882116411 3342 G R 195732187 + 32 8,3 4 2144 2.882117647 3342 I R 195732187 + 32 8,3 4 2145 ... (1 Reply)
Discussion started by: W.C.C
1 Replies

6. UNIX for Advanced & Expert Users

Determining interface to access IP

Hello I've got a server with multiple NICS. In a script I want to log the outbound interface. Is there an easy way I can do this so that the output looks something like this: host(xxx.xxx.xxx.xxx): Opening connection to ... Obviously, getting the host is simple with hostname. But how... (4 Replies)
Discussion started by: brsett
4 Replies

7. Filesystems, Disks and Memory

Disk read and write speed.

Being a novice user to linux i m little unaware of how would i check disk read write speed. One of my mate is suggesting to create a file using dd command and check how much time it takes to create a 30 gb file . I think this has a little sense however i would also like to take your reviews... (5 Replies)
Discussion started by: pinga123
5 Replies

8. Programming

determining the IP of a function

Is there a way to determine the "Instruction Pointer" of a function in c++, and if so can someone tell me? (5 Replies)
Discussion started by: neur0n
5 Replies

9. UNIX for Advanced & Expert Users

Best practice - determining what region you are on

Hello all, I have a question about what you think the best practice is to determine what region you are running on when you have a system setup with a DEV/TEST, QA, and PROD regions running the same scripts in all. So, when you run in DEV, you have a different directory structure, and you... (4 Replies)
Discussion started by: Rediranch
4 Replies
AAC(4)							   BSD Kernel Interfaces Manual 						    AAC(4)

NAME
aac -- Adaptec AdvancedRAID Controller driver SYNOPSIS
aac* at pci? dev ? function ? ld* at aac? unit ? DESCRIPTION
The aac driver provides support for the Adaptec AAC family of SCSI and SATA RAID controllers. These controllers support RAID 0, 1, 5, 10, and volume sets. They have four channels in the add-in version or 1-2 channels in the motherboard integrated version, and are most often found rebadged by Dell, Hewlett-Packard or IBM. Supported controllers include: o Adaptec AAC-364 o Adaptec SCSI RAID 2120S o Adaptec SCSI RAID 2200S o Adaptec SATA RAID 2410SA o Adaptec SATA RAID 3405 o Adaptec SCSI RAID 5400S o Dell PERC 2/Si o Dell PERC 2/QC o Dell PERC 3/Di o Dell PERC 3/Si o Dell PERC 320/DC o Dell CERC SATA RAID 1.5/6ch o HP NetRAID 4M o HP ML110 G2 (Adaptec SATA RAID 2610SA) o IBM ServeRAID 8k Access to RAID containers is available via the ld device driver. Individual drives cannot be accessed unless they are part of a container or volume set, and non-fixed disks cannot be accessed. Containers can be configured by using the on-board BIOS utility of the card. DIAGNOSTICS
The adapter can send status and alert messages asynchronously to the driver. These messages are printed on the system console. SEE ALSO
intro(4), ld(4) HISTORY
The aac driver first appeared in NetBSD 1.6, and was based on the FreeBSD driver of the same name. BUGS
This driver is not compatible with controllers that have version 1.x firmware. The firmware version is the same as the kernel version printed in the BIOS POST and driver attach messages. BSD
February 19, 2011 BSD
All times are GMT -4. The time now is 11:29 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy