[zfs-discuss] ZFS disk give a kstat_create namespace collision

We have a zfs pool setup as an iscsi disk attached to an equallogic box. When we boot the system up we get the following warning. WARNING: kstat_create('mdi', 0, 'ssd0.t1.iscsi0'): namespace collision I believe this is regards to the zfs iscsi disks. This may not be the right forum but I don't

Re: [zfs-discuss] List of supported multipath drivers

I was referring to HDLM/SDLM, powerpath, DMP. Specifically HDLM. Keith McAndrew Senior Systems Engineer Northern California SUN Microsystems - Data Management Group 916 715 8352 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, February 08, 2008 3:31 P

Re: [zfs-discuss] List of supported multipath drivers

Keith McAndrew wrote: > Where can I find a list of supported multipath drivers for ZFS? Not quite sure what you mean. Do you mean "which hba drivers are supported with MPxIO?" ? If so, that list - as far as I know - is currently mpt (for SAS) emlxs qlc If instead you are asking "which drivers m

[zfs-discuss] List of supported multipath drivers

Where can I find a list of supported multipath drivers for ZFS? Keith McAndrew Senior Systems Engineer Northern California SUN Microsystems - Data Management Group [EMAIL PROTECTED] 916 715 8352 Cell CONFIDENTIALITY NOTICE The information contained in this

Re: [zfs-discuss] UFS on zvol Cache Questions...

Hello Darren, Please find responses in line below... On Fri, 2008-02-08 at 10:52 +, Darren J Moffat wrote: > Brad Diggs wrote: > > I would like to use ZFS but with ZFS I cannot prime the cache > > and I don't have the ability to control what is in the cache > > (e.g. like with the directio U

Re: [zfs-discuss] ZFS Performance Issue

Hi Daniel. I take it you are an RRD4J user? I didn't see anything in the "performance issues" area that would help. Please let me know if I'm missing something: - The default of RRD4J is to use NIO backend, so that is already in place. - Pooling won't help because there is almost never a time

Re: [zfs-discuss] ZFS Performance Issue

We are going to get a 6120 for this temporarily. If all goes well, we are going to move to a 6140 SAN solution. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/lis

Re: [zfs-discuss] ZFS Performance Issue

> The other thing to keep in mind is that the tunables > like compression > and recsize only affect newly written blocks. If you > have a bunch of > data that was already laid down on disk and then you > change the tunable, > this will only cause new blocks to have the new size. > If you experime

Re: [zfs-discuss] nfs exporting nested zfs

Thanks. I guess this makes sense, now that I think about it, since this would be the same behavior exporting nested ufs filesystems. It just took me by surprise since I was testing by accessing these on my workstation, and then when the jobs ran overnight on the server the behavior was different

Re: [zfs-discuss] Lost intermediate snapshot; incremental backup still possible?

Do you still have any snapshots on the original disk? If so, you might be able to rollback the filesystem on the USB disk to match the last available snapshot and then run an incremental again? If you've no snapshots left at all, I can't imagine there's anything you can do other than a full se

Re: [zfs-discuss] iSCSI target using ZFS filesystem as backing

I think I know the problem you are encountering well, and have managed to overcome it. I'll outline here exactly how I'm creating my iscsi targets, and I'm hoping you might see where your commands are different. As Jim pointed out, the problem was that I was creating the filesystem on a cached

Re: [zfs-discuss] iSCSI target using ZFS filesystem as backing

This thread is actually a bit different than what you're experiencing. I never see any huge memory usage from the iscsitgtd in the process table, but I'm definitely encountering memory leaks. And the box itself stays stable and at low CPU utilization. I can restart the iscsitgtd and the problems

Re: [zfs-discuss] Real time mirroring

Heh, it might have been me who suggested that. I'm testing the idea out at the moment, but being new to Solaris it's taking some time. So far I've confirmed that you can import iSCSI volumes to ZFS fine, but you need to use static discovery. If you use sendtargets, it breaks when devices go o

Re: [zfs-discuss] Real time mirroring

J.P. King wrote: >> Remember to also deploy IPsec to protect the iSCSI traffic. You want at >> least IPsec with AH to get integrity protection on the wire and for cross >> site you likely what ESP+Auth as well. > > How will this help given dark fibre between the sites? I'm not doing this > ov

Re: [zfs-discuss] Real time mirroring

What is the procedure for enabling DTL ? PS: I am no unix guru Mertol Ozyoney Storage Practice - Sales Manager Sun Microsystems, TR Istanbul TR Phone +902123352200 Mobile +905339310752 Fax +90212335 Email [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EM

Re: [zfs-discuss] Real time mirroring

J.P. King wrote: >> I think I have heard something called dirty time logging being implemented >> in ZFS. > > Thanks for the pointer. Certainly interesting, but according to the > talks/emails I've found a month or so ago ZFS "will offer" this, so I am > guessing it isn't there yet, and certain

Re: [zfs-discuss] Real time mirroring

> I think I have heard something called dirty time logging being implemented > in ZFS. Thanks for the pointer. Certainly interesting, but according to the talks/emails I've found a month or so ago ZFS "will offer" this, so I am guessing it isn't there yet, and certainly not in a released versi

Re: [zfs-discuss] Real time mirroring

> Remember to also deploy IPsec to protect the iSCSI traffic. You want at > least IPsec with AH to get integrity protection on the wire and for cross > site you likely what ESP+Auth as well. How will this help given dark fibre between the sites? I'm not doing this over a public internet! >

Re: [zfs-discuss] Real time mirroring

J.P. King wrote: > Someone suggested an idea, which the more I think about the less insane it > sounds. I thought I would ask the assembled masses to see if anyone had > tried anything like this, and how successful they had been. > > I'll start with the simplest variant of the solution, but the

Re: [zfs-discuss] UFS on zvol Cache Questions...

Brad Diggs wrote: > I would like to use ZFS but with ZFS I cannot prime the cache > and I don't have the ability to control what is in the cache > (e.g. like with the directio UFS option). Why do you believe you need that at all ? What do you do to "prime" the cache with UFS and what benefit do

Re: [zfs-discuss] Real time mirroring

I think I have heard something called dirty time logging being implemented in ZFS. Mertol Ozyoney Storage Practice - Sales Manager Sun Microsystems, TR Istanbul TR Phone +902123352200 Mobile +905339310752 Fax +90212335 Email [EMAIL PROTECTED] -Original Message- From: [EMAIL PRO

[zfs-discuss] Avoiding perfromance decrease when pool over 80% usage

Hi all, i am planning a zfs-fileserver for a larger prepress-company in Germany. Knowing that users tend to use all the space they can get, i am looking for a solution to avoid a rapid performance loss when the production-pool is more than 80% used. Would it be a practical solution to just set

Re: [zfs-discuss] iSCSI target using ZFS filesystem as backing

Hey guys, I just hit exactly the same problem, but for some reason I can't see one of my zpools in /dev/zvol/rdsk. I'm testing out ZFS over iSCSI. To begin with I created a 1GB file on an 8GB pool, it seemed ok (but I'd missed the fact it was using 1GB of RAM). Next I wanted a bigger iSCSI d

[zfs-discuss] Real time mirroring

Someone suggested an idea, which the more I think about the less insane it sounds. I thought I would ask the assembled masses to see if anyone had tried anything like this, and how successful they had been. I'll start with the simplest variant of the solution, but there are potentially subtle

Re: [zfs-discuss] Did MDB Functionality Change?

Hi Spencer, spencer wrote: > On Solaris 10 u3 (11/06) I can execute the following: > > bash-3.00# mdb -k > Loading modules: [ unix krtld genunix specfs dtrace ufs sd pcipsy ip sctp > usba nca md zfs random ipc nfs crypto cpc fctl fcip logindmux ptm sppp ] > >> arc::print >> > { > anon