Re: Slow Write Performance on 3ware controller
On 7/22/06, Richard Collyer [EMAIL PROTECTED] wrote: Completely ignore me. Write caching wasnt turned on. Even with write caching off you should be able to hit 50MB/s... did I missing something? Try running 'diskinfo -t /dev/diskname'. For refrence here are the numbers from my single 400GB Seagate ST3400832AS drive, if you can't bet it then something is wrong with your setup: diskinfo -t /dev/ad4 /dev/ad4 512 # sectorsize 400088457216# mediasize in bytes (373G) 781422768 # mediasize in sectors 775221 # Cylinders according to firmware. 16 # Heads according to firmware. 63 # Sectors according to firmware. Seek times: Full stroke: 250 iter in 5.844998 sec = 23.380 msec Half stroke: 250 iter in 4.558075 sec = 18.232 msec Quarter stroke: 500 iter in 7.147166 sec = 14.294 msec Short forward:400 iter in 2.253667 sec =5.634 msec Short backward: 400 iter in 2.013481 sec =5.034 msec Seq outer: 2048 iter in 0.332809 sec =0.163 msec Seq inner: 2048 iter in 0.349674 sec =0.171 msec Transfer rates: outside: 102400 kbytes in 1.503943 sec =68088 kbytes/sec middle:102400 kbytes in 1.688924 sec =60630 kbytes/sec inside:102400 kbytes in 3.021035 sec =33896 kbytes/sec Richard Collyer wrote: Hello, I recently installed a 3ware 9500S-12 along with 3 x 250GB Seagate 7200.10 Drives. I am getting very poor read/write performance on this array that I have set up (RAID5 - 64K stripe) Reading to the 2 mirrored drives that I have on a 3ware 7006-2 I can get 8MB/sec over samba which is what I expect. From the new array I am getting 4MB/sec. To rule out samba I did a file copy from one array to the other an averaged 3.8MB/sec which I assume is being limited by the new array. Any ideas where I can check to see if there are problems and what are the first steps / common things that people miss when adding drives. In short I... a) installed the drive b) disk partitioned using /stand/sysinstall c) labelled using the same d) edited /etc/drivetabthingy to mount the drive Anyone else have any other suggestions on what I can check? Cheers Richard ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] __ NOD32 1.1674 (20060722) Information __ This message was checked by NOD32 antivirus system. http://www.eset.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- BSD Podcasts @: http://bsdtalk.blogspot.com/ http://freebsdforall.blogspot.com/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
On 7/23/06, Nikolas Britton [EMAIL PROTECTED] wrote: On 7/22/06, Richard Collyer [EMAIL PROTECTED] wrote: Completely ignore me. Write caching wasnt turned on. Even with write caching off you should be able to hit 50MB/s... did I missing something? Try running 'diskinfo -t /dev/diskname'. For refrence here are the numbers from my single 400GB Seagate ST3400832AS drive, if you can't bet it then something is wrong with your setup: diskinfo -t /dev/ad4 /dev/ad4 512 # sectorsize 400088457216# mediasize in bytes (373G) 781422768 # mediasize in sectors 775221 # Cylinders according to firmware. 16 # Heads according to firmware. 63 # Sectors according to firmware. Seek times: Full stroke: 250 iter in 5.844998 sec = 23.380 msec Half stroke: 250 iter in 4.558075 sec = 18.232 msec Quarter stroke: 500 iter in 7.147166 sec = 14.294 msec Short forward:400 iter in 2.253667 sec =5.634 msec Short backward: 400 iter in 2.013481 sec =5.034 msec Seq outer: 2048 iter in 0.332809 sec =0.163 msec Seq inner: 2048 iter in 0.349674 sec =0.171 msec Transfer rates: outside: 102400 kbytes in 1.503943 sec =68088 kbytes/sec middle:102400 kbytes in 1.688924 sec =60630 kbytes/sec inside:102400 kbytes in 3.021035 sec =33896 kbytes/sec To test write speed use dd: 'dd if=/dev/zero of=testfile bs=4m' ^C128+0 records in 127+0 records out 532676608 bytes transferred in 10.840476 secs (49137752 bytes/sec) 46.87MB/s. -- BSD Podcasts @: http://bsdtalk.blogspot.com/ http://freebsdforall.blogspot.com/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
Nikolas Britton wrote: On 7/22/06, Richard Collyer [EMAIL PROTECTED] wrote: Completely ignore me. Write caching wasnt turned on. Even with write caching off you should be able to hit 50MB/s... did I missing something? Try running 'diskinfo -t /dev/diskname'. For refrence here are the numbers from my single 400GB Seagate ST3400832AS drive, if you can't bet it then something is wrong with your setup: I get: [EMAIL PROTECTED]:/home/richard] $ diskinfo -t /dev/da0 /dev/da0 512 # sectorsize 499977814016# mediasize in bytes (466G) 976519168 # mediasize in sectors 60785 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Seek times: Full stroke: 250 iter in 2.572859 sec = 10.291 msec Half stroke: 250 iter in 2.957264 sec = 11.829 msec Quarter stroke: 500 iter in 6.256571 sec = 12.513 msec Short forward:400 iter in 2.555676 sec =6.389 msec Short backward: 400 iter in 2.474576 sec =6.186 msec Seq outer: 2048 iter in 0.556584 sec =0.272 msec Seq inner: 2048 iter in 0.593798 sec =0.290 msec Transfer rates: outside: 102400 kbytes in 2.080951 sec =49208 kbytes/sec middle:102400 kbytes in 2.102060 sec =48714 kbytes/sec inside:102400 kbytes in 2.054728 sec =49836 kbytes/sec Not too bad, not too great. Cheers Richard ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
On 7/23/06, Richard Collyer [EMAIL PROTECTED] wrote: Nikolas Britton wrote: On 7/22/06, Richard Collyer [EMAIL PROTECTED] wrote: Completely ignore me. Write caching wasnt turned on. Even with write caching off you should be able to hit 50MB/s... did I missing something? Try running 'diskinfo -t /dev/diskname'. For refrence here are the numbers from my single 400GB Seagate ST3400832AS drive, if you can't bet it then something is wrong with your setup: I get: [EMAIL PROTECTED]:/home/richard] $ diskinfo -t /dev/da0 /dev/da0 512 # sectorsize 499977814016# mediasize in bytes (466G) 976519168 # mediasize in sectors 60785 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Seek times: Full stroke: 250 iter in 2.572859 sec = 10.291 msec Half stroke: 250 iter in 2.957264 sec = 11.829 msec Quarter stroke: 500 iter in 6.256571 sec = 12.513 msec Short forward:400 iter in 2.555676 sec =6.389 msec Short backward: 400 iter in 2.474576 sec =6.186 msec Seq outer: 2048 iter in 0.556584 sec =0.272 msec Seq inner: 2048 iter in 0.593798 sec =0.290 msec Transfer rates: outside: 102400 kbytes in 2.080951 sec =49208 kbytes/sec middle:102400 kbytes in 2.102060 sec =48714 kbytes/sec inside:102400 kbytes in 2.054728 sec =49836 kbytes/sec Not too bad, not too great. That would be unacceptable in my book. Whats the load on the system? Is the 3ware 9500S in a regular PCI 33MHz/32-bit slot? Motherboard/CPU? -- BSD Podcasts @: http://bsdtalk.blogspot.com/ http://freebsdforall.blogspot.com/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
Nikolas Britton wrote: That would be unacceptable in my book. Whats the load on the system? Is the 3ware 9500S in a regular PCI 33MHz/32-bit slot? Motherboard/CPU? The motherboard is an Intel N440BX running 2 PIII 600MHZ (feel the power). FreeBSD version is 5.4 32 bit PCI not sure if they are 33/66Mhz as I dont have the manual to hand. Now the card is in the bottom PCI slot which is the only place it would fit becuase of the 7006-2 above it and the way that the standard IDE connectors are mounted. Would moving the top card to the bottom slot and putting the 9500S-12 in the top slot screw with FreeBSD in anyway or will it just accept the changes and keep on going? I know windows has an issue with this and wants you to reinstall drivers and such like if you move cards around. Cheers Richard ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
On 7/23/06, Richard Collyer [EMAIL PROTECTED] wrote: Nikolas Britton wrote: That would be unacceptable in my book. Whats the load on the system? Is the 3ware 9500S in a regular PCI 33MHz/32-bit slot? Motherboard/CPU? The motherboard is an Intel N440BX running 2 PIII 600MHZ (feel the power). FreeBSD version is 5.4 32 bit PCI not sure if they are 33/66Mhz as I dont have the manual to hand. Now the card is in the bottom PCI slot which is the only place it would fit becuase of the 7006-2 above it and the way that the standard IDE connectors are mounted. Ok... that might be the best you can get speed wise with the above system. You should be able to milk alot more performance out of that card if you put it in a newer system. Would moving the top card to the bottom slot and putting the 9500S-12 in the top slot screw with FreeBSD in anyway or will it just accept the changes and keep on going? I don't see any problem doing that... FreeBSD would only care if it was the boot drive AND if it also changed the device name in /dev. So yes... try it... if it changes the /dev name just edit /etc/fstab with the new settings. -- BSD Podcasts @: http://bsdtalk.blogspot.com/ http://freebsdforall.blogspot.com/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
Nikolas Britton wrote: Would moving the top card to the bottom slot and putting the 9500S-12 in the top slot screw with FreeBSD in anyway or will it just accept the changes and keep on going? I don't see any problem doing that... FreeBSD would only care if it was the boot drive AND if it also changed the device name in /dev. So yes... try it... if it changes the /dev name just edit /etc/fstab with the new settings. Oh yes, had fun with fstab in single user mode yesterday ... I'd put a spelling mistake in /etc/fstab that was fun as it was my first venture into single user mode. Took me 20 mins to realise that only / was mounted and that /use wasn't hence no editors or shells. As this is a production server (its only my home file server) and the card was an ebay special at sub $200 I'm happy with the performance. I may play around with moving them when some more routine maintenance comes up but as I am only writing to it over the 100Mbit network 50MB/sec is more than enough for what I am looking at. Many thanks for the help. Cheers Richard ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
On Sunday 23 July 2006 06:04, Richard Collyer wrote: Nikolas Britton wrote: Would moving the top card to the bottom slot and putting the 9500S-12 in the top slot screw with FreeBSD in anyway or will it just accept the changes and keep on going? I don't see any problem doing that... FreeBSD would only care if it was the boot drive AND if it also changed the device name in /dev. So yes... try it... if it changes the /dev name just edit /etc/fstab with the new settings. Oh yes, had fun with fstab in single user mode yesterday ... I'd put a spelling mistake in /etc/fstab that was fun as it was my first venture into single user mode. Took me 20 mins to realise that only / was mounted and that /use wasn't hence no editors or shells. As this is a production server (its only my home file server) and the card was an ebay special at sub $200 I'm happy with the performance. I may play around with moving them when some more routine maintenance comes up but as I am only writing to it over the 100Mbit network 50MB/sec is more than enough for what I am looking at. Many thanks for the help. Cheers Richard all this 3ware discussion inspired me to check out my 6.1-releng server and see how its 3ware card stacks up to the previously posted scores. [EMAIL PROTECTED] ~]# diskinfo -t /dev/twed2 /dev/twed2 512 # sectorsize 360099151872# mediasize in bytes (335G) 703318656 # mediasize in sectors 43779 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Seek times: Full stroke: 250 iter in 5.702448 sec = 22.810 msec Half stroke: 250 iter in 3.484361 sec = 13.937 msec Quarter stroke: 500 iter in 5.728894 sec = 11.458 msec Short forward:400 iter in 2.178793 sec =5.447 msec Short backward: 400 iter in 3.040917 sec =7.602 msec Seq outer: 2048 iter in 0.502034 sec =0.245 msec Seq inner: 2048 iter in 0.521798 sec =0.255 msec Transfer rates: outside: 102400 kbytes in 2.872447 sec =35649 kbytes/sec middle:102400 kbytes in 2.996709 sec =34171 kbytes/sec inside:102400 kbytes in 2.341439 sec =43734 kbytes/sec ive been a 3ware fan for many years now. this pic was taken in 2001... http://www.dfwlp.org/~jhorne/pics/computerroom/raid01.jpg heh, you want to talk about pci placement based on fit of ide cables... lol try mine. in the end, after 5 years, im impressed mine is still chugging away, at albeit the performance numbers of yesteryear. oh, incase anyone would ask, my /dev/twed2 is a 4x120GB RRAID5 with seagate's (ST3120026A), in a dual 1ghz thats almost as old as the card. i would love to go out and buy a new 3ware... but this one wont die! :) an btw to richard (and other 3ware users too), do you have the sysutils/tw_cli port installed? very useful! cheers, jonathan ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
Jonathan Horne wrote: ive been a 3ware fan for many years now. this pic was taken in 2001... http://www.dfwlp.org/~jhorne/pics/computerroom/raid01.jpg heh, you want to talk about pci placement based on fit of ide cables... lol try mine. in the end, after 5 years, im impressed mine is still chugging away, at albeit the performance numbers of yesteryear. oh, incase anyone would ask, my /dev/twed2 is a 4x120GB RRAID5 with seagate's (ST3120026A), in a dual 1ghz thats almost as old as the card. i would love to go out and buy a new 3ware... but this one wont die! :) an btw to richard (and other 3ware users too), do you have the sysutils/tw_cli port installed? very useful! No dont have the tw_cli installed. I'm a big fan of the 3DM2 web based tool and havent found anything that it cant do for me yet. I'll check out that port and report back! Cheers Richard ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
On Sunday 23 July 2006 11:11, Richard Collyer wrote: an btw to richard (and other 3ware users too), do you have the sysutils/tw_cli port installed? very useful! No dont have the tw_cli installed. I'm a big fan of the 3DM2 web based tool and havent found anything that it cant do for me yet. I'll check out that port and report back! ah, see my 6800 is so ancient, that the original 3DM is all it can use, and it has not operated correctly since about (when ever fedora 2 or 3 was released... quite a while). when i saw that command line util, i didnt even bother looking once i had switched to freebsd. tw_cli does a million times better than the original 3DM could ever do! cheers, jonathan ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
On 7/23/06, Jonathan Horne [EMAIL PROTECTED] wrote: On Sunday 23 July 2006 06:04, Richard Collyer wrote: Nikolas Britton wrote: Would moving the top card to the bottom slot and putting the 9500S-12 in the top slot screw with FreeBSD in anyway or will it just accept the changes and keep on going? I don't see any problem doing that... FreeBSD would only care if it was the boot drive AND if it also changed the device name in /dev. So yes... try it... if it changes the /dev name just edit /etc/fstab with the new settings. Oh yes, had fun with fstab in single user mode yesterday ... I'd put a spelling mistake in /etc/fstab that was fun as it was my first venture into single user mode. Took me 20 mins to realise that only / was mounted and that /use wasn't hence no editors or shells. As this is a production server (its only my home file server) and the card was an ebay special at sub $200 I'm happy with the performance. I may play around with moving them when some more routine maintenance comes up but as I am only writing to it over the 100Mbit network 50MB/sec is more than enough for what I am looking at. Many thanks for the help. Cheers Richard all this 3ware discussion inspired me to check out my 6.1-releng server and see how its 3ware card stacks up to the previously posted scores. [EMAIL PROTECTED] ~]# diskinfo -t /dev/twed2 /dev/twed2 512 # sectorsize 360099151872# mediasize in bytes (335G) 703318656 # mediasize in sectors 43779 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Seek times: Full stroke: 250 iter in 5.702448 sec = 22.810 msec Half stroke: 250 iter in 3.484361 sec = 13.937 msec Quarter stroke: 500 iter in 5.728894 sec = 11.458 msec Short forward:400 iter in 2.178793 sec =5.447 msec Short backward: 400 iter in 3.040917 sec =7.602 msec Seq outer: 2048 iter in 0.502034 sec =0.245 msec Seq inner: 2048 iter in 0.521798 sec =0.255 msec Transfer rates: outside: 102400 kbytes in 2.872447 sec =35649 kbytes/sec middle:102400 kbytes in 2.996709 sec =34171 kbytes/sec inside:102400 kbytes in 2.341439 sec =43734 kbytes/sec ive been a 3ware fan for many years now. this pic was taken in 2001... http://www.dfwlp.org/~jhorne/pics/computerroom/raid01.jpg heh, you want to talk about pci placement based on fit of ide cables... lol try mine. in the end, after 5 years, im impressed mine is still chugging away, at albeit the performance numbers of yesteryear. oh, incase anyone would ask, my /dev/twed2 is a 4x120GB RRAID5 with seagate's (ST3120026A), in a dual 1ghz thats almost as old as the card. IBM Deathstars, not so fond memories of those drives. Here's another diskinfo from an 8 disk Maxtor 7L250S0 array connected to a HighPoint 2220, It's days away from being decommissioned and then rebuilt into a backup array for the new one taking it's place (Areca ARC-1220 + 8 Maxtor 7V300F0s): diskinfo -t /dev/da0 /dev/da0 512 # sectorsize 1756440297472 # mediasize in bytes (1.6T) 3430547456 # mediasize in sectors 213541 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Seek times: Full stroke: 250 iter in 4.068691 sec = 16.275 msec Half stroke: 250 iter in 3.614864 sec = 14.459 msec Quarter stroke: 500 iter in 6.100577 sec = 12.201 msec Short forward:400 iter in 2.314725 sec =5.787 msec Short backward: 400 iter in 2.492332 sec =6.231 msec Seq outer: 2048 iter in 0.251374 sec =0.123 msec Seq inner: 2048 iter in 0.299685 sec =0.146 msec Transfer rates: outside: 102400 kbytes in 0.712265 sec = 143767 kbytes/sec middle:102400 kbytes in 0.698637 sec = 146571 kbytes/sec inside:102400 kbytes in 0.690232 sec = 148356 kbytes/sec -- BSD Podcasts @: http://bsdtalk.blogspot.com/ http://freebsdforall.blogspot.com/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
On Sunday 23 July 2006 11:27, Nikolas Britton wrote: IBM Deathstars, not so fond memories of those drives. indeed. i was lucky to have bought mine several months before their quality dept took a nose dive. 2 of those drives are still in service. after almost 6 years, that might be considered impresseive considering the model-family these came from. and wow.. those are pretty impressive performance numbers! what connection/speed technology is your array, and how old is it that its about to be retired? cheers, jonathan ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
On 7/23/06, Jonathan Horne [EMAIL PROTECTED] wrote: On Sunday 23 July 2006 11:27, Nikolas Britton wrote: IBM Deathstars, not so fond memories of those drives. indeed. i was lucky to have bought mine several months before their quality dept took a nose dive. 2 of those drives are still in service. after almost 6 years, that might be considered impresseive considering the model-family these came from. and wow.. those are pretty impressive performance numbers! what connection/speed technology is your array, and how old is it that its about to be retired? The controller is SATA-II and the drives are SATA150, the controller is sitting on a PCI-X66 bus... It's about a year old but we ran out of space: df -h Filesystem SizeUsed Avail Capacity Mounted on /dev/da0e 1.5T1.4T 36G98%/usr/data This time around I convinced them to make the project budget bigger. After I finish building this new primary system (dual xeon dual cores). I'll start building the other (much cheaper / slower) systems to offload most of that data to and then after that work on the even cheaper systems to backup those arrays. Tiered storage etc. etc. I'd estimate that we use around 1TB per year, it's a moving target that seems to be growing exponentially! -- BSD Podcasts @: http://bsdtalk.blogspot.com/ http://freebsdforall.blogspot.com/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
On Sun, 23 Jul 2006 10:53:58 -0500, in sentex.lists.freebsd.questions you wrote: all this 3ware discussion inspired me to check out my 6.1-releng server and see how its 3ware card stacks up to the previously posted scores. [EMAIL PROTECTED] ~]# diskinfo -t /dev/twed2 /dev/twed2 512 # sectorsize 360099151872# mediasize in bytes (335G) 703318656 # mediasize in sectors 43779 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Here is an areca 4 port PCIe in RAID 1+0 diskinfo -t da0 da0 512 # sectorsize 23647744# mediasize in bytes (224G) 468749312 # mediasize in sectors 29178 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Seek times: Full stroke: 250 iter in 1.328484 sec =5.314 msec Half stroke: 250 iter in 1.342900 sec =5.372 msec Quarter stroke: 500 iter in 2.021294 sec =4.043 msec Short forward:400 iter in 0.817074 sec =2.043 msec Short backward: 400 iter in 1.972321 sec =4.931 msec Seq outer: 2048 iter in 0.237593 sec =0.116 msec Seq inner: 2048 iter in 0.204264 sec =0.100 msec Transfer rates: outside: 102400 kbytes in 0.886375 sec = 115527 kbytes/sec middle:102400 kbytes in 1.106318 sec =92559 kbytes/sec inside:102400 kbytes in 1.806561 sec =56682 kbytes/sec Seagate ST3120827AS And an old 7810 in RAID5 with ST3500630As diskinfo -t twed1 twed1 512 # sectorsize 1500320366592 # mediasize in bytes (1.4T) 2930313216 # mediasize in sectors 182403 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. Seek times: Full stroke: 250 iter in 4.408301 sec = 17.633 msec Half stroke: 250 iter in 4.335265 sec = 17.341 msec Quarter stroke: 500 iter in 6.919564 sec = 13.839 msec Short forward:400 iter in 2.318452 sec =5.796 msec Short backward: 400 iter in 2.268990 sec =5.672 msec Seq outer: 2048 iter in 0.537223 sec =0.262 msec Seq inner: 2048 iter in 0.557811 sec =0.272 msec Transfer rates: outside: 102400 kbytes in 1.708543 sec =59934 kbytes/sec middle:102400 kbytes in 1.717575 sec =59619 kbytes/sec inside:102400 kbytes in 1.615723 sec =63377 kbytes/sec Mike Tancsa, Sentex communications http://www.sentex.net Providing Internet Access since 1994 [EMAIL PROTECTED], (http://www.tancsa.com) ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Slow Write Performance on 3ware controller
Hello, I recently installed a 3ware 9500S-12 along with 3 x 250GB Seagate 7200.10 Drives. I am getting very poor read/write performance on this array that I have set up (RAID5 - 64K stripe) Reading to the 2 mirrored drives that I have on a 3ware 7006-2 I can get 8MB/sec over samba which is what I expect. From the new array I am getting 4MB/sec. To rule out samba I did a file copy from one array to the other an averaged 3.8MB/sec which I assume is being limited by the new array. Any ideas where I can check to see if there are problems and what are the first steps / common things that people miss when adding drives. In short I... a) installed the drive b) disk partitioned using /stand/sysinstall c) labelled using the same d) edited /etc/drivetabthingy to mount the drive Anyone else have any other suggestions on what I can check? Cheers Richard ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Slow Write Performance on 3ware controller
Completely ignore me. Write caching wasnt turned on. Cheers Richard Richard Collyer wrote: Hello, I recently installed a 3ware 9500S-12 along with 3 x 250GB Seagate 7200.10 Drives. I am getting very poor read/write performance on this array that I have set up (RAID5 - 64K stripe) Reading to the 2 mirrored drives that I have on a 3ware 7006-2 I can get 8MB/sec over samba which is what I expect. From the new array I am getting 4MB/sec. To rule out samba I did a file copy from one array to the other an averaged 3.8MB/sec which I assume is being limited by the new array. Any ideas where I can check to see if there are problems and what are the first steps / common things that people miss when adding drives. In short I... a) installed the drive b) disk partitioned using /stand/sysinstall c) labelled using the same d) edited /etc/drivetabthingy to mount the drive Anyone else have any other suggestions on what I can check? Cheers Richard ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] __ NOD32 1.1674 (20060722) Information __ This message was checked by NOD32 antivirus system. http://www.eset.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
