Re: [zfs-discuss] ZFS ARC cache issue

2010-06-07 Thread Nicolas Dorfsman
When I looked for references on ARC freeing algo, I did find some lines of codes talking about freeing ARC when memory is under pressure. Nice...but what could be memory under pressure in the kernel syntax ? Jumping from C lines to blogs to docsI went back

Re: [zfs-discuss] [zones-discuss] Solaris 8/9 branded zones on ZFS root?

2009-02-25 Thread Nicolas Dorfsman
Le 25 févr. 09 à 23:12, Timothy Kennedy a écrit : Rich Teer wrote: I have a situation where I need to consolidate a few servers running Solaris 9 and 8. If the application doesn't run natively on Solaris 10 or Nevada, I was thinking of using Solars 9 or 8 branded zones. My intent would be fo

Re: [zfs-discuss] [zones-discuss] Solaris 8/9 branded zones on ZFS root?

2009-02-26 Thread Nicolas Dorfsman
Le 26 févr. 09 à 15:47, Timothy Kennedy a écrit : Timothy Kennedy wrote: Nicolas Dorfsman wrote: Which ACL model is then used ? From: System Administration Guide: Solaris 8 Containers ( http://docs.sun.com/app/docs/doc/820-2914/gfjbk?a=view ) Using ZFS Although the zone cannot use a

[zfs-discuss] SAN arrays with NVRAM cache : ZIL and zfs_nocacheflush

2007-11-27 Thread Nicolas Dorfsman
Hi, I read some articles on solarisinternals.com like "ZFS_Evil_Tuning_Guide" on http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide . They clearly suggest to disable cache flush http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide#FLUSH . It seems to be t

[zfs-discuss] Computer usable output for zpool commands

2008-02-01 Thread Nicolas Dorfsman
Hi, I wrote an hobbit script around lunmap/hbamap commands to monitor SAN health. I'd like to add detail on what is being hosted by those luns. With svm metastat -p is helpful. With zfs, zpool status output is awful for script. Is there somewhere an utility to show zpool informations in a scrip

[zfs-discuss] Re: Changes during zpool import

2006-09-01 Thread Nicolas Dorfsman
extract from man zpool : [I]zpool import [-d dir] [-D] [-f] [-o opts] [-R root] pool | id [newpool] Imports a specific pool. A pool can be identified by its name or the numeric identifier. If newpool is specified, the pool is imported using the name newpool. Oth

[zfs-discuss] Re: ZFS with expanding LUNs

2006-09-01 Thread Nicolas Dorfsman
It's a really interesting question. I used to have the issue on UFS, and the answer was "use VxVM or ZFS". Mmmm. Does it really work on ZFS ? This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://m

[zfs-discuss] Re: Recommendation ZFS on StorEdge 3320

2006-09-07 Thread Nicolas Dorfsman
> The hard part is getting a set of simple > requirements. As you go into > more complex data center environments you get hit > with older Solaris > revs, other OSs, SOX compliance issues, etc. etc. > etc. The world where > most of us seem to be playing with ZFS is on the > lower end of the > c

[zfs-discuss] ZFS on production servers with SLA

2006-09-08 Thread Nicolas Dorfsman
Hi, I'm currently doing some tests on a SF15K domain with Solaris 10 installed. The target is to convince my cu to use Solaris 10 for this domain AND establish a list of recommendations. The ZFS perimeter is really an issue for me. For now, I'm waiting for fresh

[zfs-discuss] Re: zfs share=".foo-internal.bar.edu" on multipleinterfaces?

2006-09-12 Thread Nicolas Dorfsman
> I have a Sun x4200 with 4x gigabit ethernet NICs. I > have several of > them configured with distinct IP addresses on an > internal (10.0.0.0) > network. [off topic] Why are you using distinct IP addresses instead of IPMP ? [/off] This message posted from opensolaris.org _

[zfs-discuss] Snapshots and backing store

2006-09-13 Thread Nicolas Dorfsman
Hi, There's something really bizarre in ZFS snaphot specs : "Uses no separate backing store." . Hum...if I want to mutualize one physical volume somewhere in my SAN as THE snaphots backing-store...it becomes impossible to do ! Really bad. Is there any chance to have a "backing-store-fi

[zfs-discuss] Re: Snapshots and backing store

2006-09-13 Thread Nicolas Dorfsman
Well. > ZFS isn't copy-on-write in the same way that things > like ufssnap are. > ufssnap is copy-on-write in that when you write > something, it copies out > the old data and writes it somewhere else (the > backing store). ZFS doesn't > need to do this - it simply writes the new data to a > new

[zfs-discuss] Re: Snapshots and backing store

2006-09-13 Thread Nicolas Dorfsman
> If you want to copy your filesystems (or snapshots) > to other disks, you > can use 'zfs send' to send them to a different pool > (which may even be > on a different machine!). Oh no ! It means copy the whole filesystem. The target here is definitively to snapshot the filesystem and them backu

[zfs-discuss] Re: Snapshots and backing store

2006-09-13 Thread Nicolas Dorfsman
Hi Matt, > > So. What could be the best architecture ? > > What is the problem? I/O profile isolation versus snap backing-store 'reservation' optimisation. > > With UFS, I used to have separate metadevices/LUNs for each > > application. With ZFS, I thought it would be nice to use a separate >

[zfs-discuss] Re: Veritas NetBackup Support for ZFS

2006-09-22 Thread Nicolas Dorfsman
> I am using Netbackup 6.0 MP3 on several ZFS systems > just fine. I > think that NBU won't back up some exotic ACLs of ZFS, > but if you > are using ZFS like other filesystems (UFS, etc) then there aren't any issues. Hum. ACLs are not so "exotic". This IS a really BIG issue. If you are us

[zfs-discuss] Why root zone can't be on ZFS for upgrade ?

2006-12-21 Thread Nicolas Dorfsman
Hi, Something is unclear in "Solaris containers" and "Solaris ZFS" docs Two extracts : http://docs.sun.com/app/docs/doc/819-5461/6n7ht6qsm?q=zone&a=view "Consider the following interactions when working with ZFS on a system with Solaris zones installed: A ZFS file system that is added to a non

[zfs-discuss] Re: Why root zone can't be on ZFS for upgrade ?

2006-12-21 Thread Nicolas Dorfsman
Jeff wrote : > The installation software does not yet understand > ZFS, and is not able to > upgrade a Solaris 10 system with a ZFS root file > system. Further, it is not > able to upgrade a Solaris 10 system with a non-global > zone that has a ZFS file > system as its zonepath. Thanks Jeff.