similar to: Performance advantages of spool with 2x raidz2 vdev"s vs. Single vdev

I''d like to replace/upgrade two 500GB disks in RaidZ2 vdev with 1TB disks, but I have some preliminary questions/concerns before trying ''zfs replace dpool ?'' Will ZFS permit this replacement? Will ZFS use the extra space in a heterogeneous RaidZ2 vdev, or is the size limited by the smallest disk in the vdev? Thanks in advance, Vizzini The system is currently running

I''m currently planning on running FreeBSD with ZFS, but I wanted to double-check how much memory I''d need for it to be stable. The ZFS wiki currently says you can go as low as 1 GB, but recommends 2 GB; however, elsewhere I''ve seen someone claim that you need at least 4 GB. Does anyone here know how much RAM FreeBSD would need in this case? Likewise, how much RAM

Hello, 1) If i create a raidz2 pool on some disks, start to use it, then the disks'' controllers change. What will happen to my zpool? Will it be lost or is there some disk tagging which allows zfs to recognise the disks? 2) if i create a raidz2 on 3 HDs, do i have any resilience? If any one of those drives fails, do i loose everything? I''ve got one such pool and

Already making use of it, thank you! http://www.justinconover.com/blog/?p=17 I took 6x250gb disk and tried raidz2/raidz/none # zpool create zfs raidz2 c0d0 c1d0 c2d0 c3d0 c7d0 c8d0 df -h zfs Filesystem size used avail capacity Mounted on zfs 915G 49K 915G 1% /zfs # zpool destroy -f zfs Plain old raidz (raid-5ish) # zpool create zfs raidz c0d0

Will it be possible to update an existing raidz to a raidz2? I wouldn''t think so, but maybe I''ll be pleasantly surprised. -frank

I''m playing around with ZFS and want to figure out the best use of my 6x 300GB SATA drives. The purpose of the drives is to store all of my data at home (video, photos, music, etc). I''m debating between: 6x 300GB disks in a single raidz2 pool --or-- 2x (3x 300GB disks in a pool) mirrored I''ve read up a lot on ZFS, but I can''t really figure out which is

I have a customer who has implemented the following layout: As you can see, he has mostly raidz zvols but has one raidz2 in the same zpool. What are the implications here? Is this a bad thing to do? Please elaborate. Thanks, Scott Gaspard Scott.J.Gaspard at Sun.COM > NAME STATE READ WRITE CKSUM > > chipool1 ONLINE 0 0 0 > >

I currently am getting good speeds out of my existing system (8x 2TB in a RAIDZ2 exported over fibre channel) but there''s no such thing as too much speed, and these other two drive bays are just begging for drives in them.... If I go to 10x 2TB in a RAIDZ3, will the extra spindles increase speed, or will the extra parity writes reduce speed, or will the two factors offset and leave things

Hi Folks.. I have a system that was inadvertently left unmirrored for root. We were able to add a mirror disk, resilver, and fix the corrupted files (nothing very interesting was corrupt, whew), but zpool status -v still shows errors.. Will this self correct when we replace the degraded disk and resilver? Or is there something else that I''m not finding that I need to do to clean up?

I am in the middle of converting a FreeBSD 8.0-Release system to OpenSolaris b130 In order to import my stuff, the only way i knew to make it work (from testing in virtualbox) was to do this: label a bunch of drives with an EFI label by using the opensolaris live cd, then use those drives in FreeBSD to create a zpool. This worked fine. (though i did get a warning in freebsd about GPT

Hi all, I have a Toshiba Tecra M9 and have not been able to boot it dom0. This is running SXDE 01/08, snv79b. After booting under kmdb and setting moddebug=80000000 before booting the Solaris kernel (with help from Dan Mick), I was able to see mac_ether as the last thing loading, right after loading the e1000g driver. I cannot drop into kmdb via F1-A after it hangs. I''ve also

Hi, i''m new to the list so please bare with me. This isn''t an OpenSolaris related problem but i hope it''s still the right list to post to. I''m on the way to move a backup server to using zfs based storage, but i don''t want to spend too much drives to parity (the 16 drives are attached to a 3ware raid controller so i could also just use raid6 there). I

(Reply directly, as I''m not subscribed here.) As you may have seen, ARC recently approved my case to remove the ancient sbpro driver Solaris. I''m intent on doing that, because it really helps with our OSS integration effort, which I''m now leading. The problem is, will this impact qemu? I''m not sure of the answer. I *think* qemu emulates an older ESS1370

(Reply directly, as I''m not subscribed here.) As you may have seen, ARC recently approved my case to remove the ancient sbpro driver Solaris. I''m intent on doing that, because it really helps with our OSS integration effort, which I''m now leading. The problem is, will this impact qemu? I''m not sure of the answer. I *think* qemu emulates an older ESS1370

While testing a zpool with a different storage adapter using my "blkdev" device, I did a test which made a disk unavailable -- all attempts to read from it report EIO. I expected my configuration (which is a 3 disk test, with 2 disks in a RAIDZ and a hot spare) to work where the hot spare would automatically be activated. But I''m finding that ZFS does not behave this way

got a problem with b75 that the zone with ip-exclusive just takes the identity of the global zone. For the primary nic there is no option to set its ip and hostname. When i change the host name and ip the hostname does not change and the networking goes weird for both the zone and global zone. sparc eri qfe There any bugs about or should this work fine? This message posted from

I''ve been thinking about hardware that has multiple transmit rings ("tx resources"). We really should have a way to expose this up to the stack. And ideally, the stack should guarantee that a given flow will always be sent down using the same hardware tx resource. I''ve heard that crossbow will deliver this, but I can''t find evidence of it in the crossbow

I have a coworker, who''s primary expertise is in another flavor of Unix. This coworker lists floating point operations as one of ZFS detriments. I''s not really sure what he means specifically, or where he got this reference from. In an effort to refute what I believe is an error or misunderstanding on his part, I have spent time on Yahoo, Google, the ZFS section of

Sorry for an off-topic question, but anyone knows how to make network configuration (done with ifconfig/route add) sticky in nexenta core/napp-it? After reboot system reverts to 0.0.0.0 and doesn''t listen to /etc/defaultrouter Thanks.

Hi all :) I''ve been wanting to make the switch from XFS over RAID5 to ZFS/RAIDZ2 for some time now, ever since I read about ZFS the first time. Absolutely amazing beast! I''ve built my own little hobby server at home and have a boatload of disks in different sizes that I''ve been using together to build a RAID5 array on Linux using mdadm in two layers; first layer is