[zfs-discuss] Re: Re: Re: Re: Re: concatination & stripe - zfs?
So you think that if I move the QLA2342 from the 33MH slot to the 64MH slot, it will be faster and will do a real parrallel work on each port? This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Re: Re: Re: Re: concatination & stripe - zfs?
>That would surprise me. Can it be that you are saturating the PCI slot >you 2342 card sits in ? IIRC not every slot on V240 can handle dual port 2342 >card >going at full rate. I didn't understand what you mean? there is only 3 slots on v240, which of them cannot handle dual HBA? >Generalizations like that fairly often become not true at all. It just depends >on too many factors. I know that there are many factors for that, but my preformance test was clear , it is much faster to write 20GB on SAN than local disk. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Re: Re: Re: concatination & stripe - zfs?
Those are the result of my preformance test : time -p "dd if=/dev/zero of=/ZFS_pool/testfile bs=1024k count=20480 && /bin/sync" (also I change on the server the kernel parameter -> ssd_max_throttle=32) seconds__write the file on zpool that biuld from 160sstripeZFS on 2 luns from diffrent HBAs & diffrent StorageController 190sstripeZFS on 2 luns from diffrent HBAs & same StorageController 210sstripeZFS on 2 luns from same dual HBA(diffrent port in the HBA) & diffrent StorageController 210sZFS on 1 lun from HBA & StorageController 300slocal scsi disk on the server NOTE : server type V240, solaris10(11/06), 2 internal disks, HBAs QLA2342,mpxio disable, the server connected to HDS storage type AMS500(2GB cash, Raid 9+1 with one spare) Conclutions : 1. the dual HBA qla2342 is not a parallel at all. so it is better to use 2 single HBAs then one dual HBA. 2. it is better to write Storage from the HBA then to local disks. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Re: Re: concatination & stripe - zfs?
- I will try your test. - But How the zfs cash affect my test? - can you send me the guide that tell to change the sd_max_throttle to 32 on solaris10 or solaris8? there would me no more then 30 LUN active on the port but no simultanies. - do you know if a HBA dual QLA2342 can use both 2 ports at the same time(parallel)? or it uses them one by one? thanks This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Re: concatination & stripe - zfs?
stripe all of them maybe OK. another 2 questions : 1. there is any concatination mathod in ZFS? 2. I test the prepormance by copy 512MB file into zfs pool that created from 2 luns with stripe, one Lun came from Storage-controller-0 and connected through HBA-0 second Lun came from Storage-controller-1 and connected through HBA-1 the time was 12 sec. And I did another preforman test by copy 512MB file into zfs pool that created from 1 lun only. and the test result was the same - 12 sec !? NOTE : server V240, solaris10(11/06), 2GB RAM, connected to HDS storage type AMS500 with two HBA type qlogic QLA2342. Any explanation? it seems that te stripe didn't actualy effect preformance! This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] concatination & stripe - zfs?
I want to configure my zfs like this : concatination_stripe_pool : concatination lun0_controller0 lun1_controller0 concatination lun2_controller1 lun3_controller1 1. There is any option to implement it in ZFS? 2. there is other why to get the same configuration? thanks This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] striping with ZFS and SAN(AMS500 HDS)
I have Storage-SAN of HDS(AMS500), and I want to do striping on luns from the storage. I don't want any raid-5(because I have one on the disks in the HDS storage). I only want to do strip on 2 luns(25GB each) that cames from different controllers and deffrent fiber channel port(dual HBA). I test the preformance by writing 512MB in to the zfs, with 2 luns striped(each lun from diffrent controller and connected from diffrent port of the dual HBA). also I test the by writing 512MB into zfs, with only one lun, BUT the preformance was the same. I thougth the the preformace should be doubled!??? another question , can I do concatination in zfs? This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
