search for: wafling

Displaying 20 results from an estimated 22 matches for "wafling".

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2008 Feb 23
1
btrfs questions..
Hello ! I'm very interested in btrfs development and I have general questions about it. Please accept my apologizes if they are dumb as I'm new to this area, and I just want to learn.. 1. Like the btrfs name implies (b-trees fs..) I guess that it works basically like WAFL (and ZFS), is that right ? 2. Are there any big differences between btrfs-wafl-zfs or only small ones ? 3. NetApp
2005 Nov 09
2
Filers, filesystems, etc.
On Tue, Nov 08, 2005 at 08:04:54AM -0800, Bryan J. Smith wrote: > > > NAS offers safe concurent access (generally, there might be > > some NAS devices outthere that do not). NAS device will > > manage file system internally, and export it over NFS or > > SMB protocols to the clients. > > Such NAS' are a combined host+storage aka
2010 Apr 27
7
Mapping inode numbers to file names
Let''s suppose you rename a file or directory. /tank/widgets/a/rel2049_773.13-4/somefile.txt Becomes /tank/widgets/b/foogoo_release_1.9/README Let''s suppose you are now working on widget B, and you want to look at the past zfs snapshot of README, but you don''t remember where it came from. That is, you don''t know the previous name or location where that
2007 May 30
1
rsync-ing IMAP mbox-format mailboxes to NetApp
Hi all, Sorry for the longish post! I've been looking at using rsync to mirror our mailstore (BSD/mbox format, i.e. flat files consisting of concatenated plaintext messages) to a NetApp Nearstore (basically a filer with SATA rather than FC disk) mounted over NFS. I want to do this in such a way that the NetApp automatic snapshots are kept as small as possible, so hopefully several versions
2014 May 30
1
attachment sis + EMLINK (too many links) = segfault bug (2.2.12)
Hi, we use attachment dedup with lots of emails (still migrating to it from maildir). We use netapp storage with wafl filesystem over nfs. Problem is that netapp has hard limit of 100k hardlinks to one file. And we encountered it. Problem is that dovecot start do segfault (lmtp,dsync,pop3 etc) when it happend when tried to deliver new emails with that attachment. Here is strace of dsync: 6740
2018 Mar 23
2
File system permissions - setgid bit and Netapp NFS volumes
Greetings Dovecot List, I have a bit of an edge case I am trying to resolve. I am currently using dovecot on Ubuntu 14.04 - Ubuntu package version: 1:2.2.9-1ubuntu2.3 I have attached the output of doveconf -n to this email - but to describe the configuration in a nutshell: my server is configured to use Maildir storage I do not use dovecot delivery service (there is a separate
2009 Apr 26
9
Peculiarities of COW over COW?
We run our IMAP spool on ZFS that''s derived from LUNs on a Netapp filer. There''s a great deal of churn in e-mail folders, with messages appearing and being deleted frequently. I know that ZFS uses copy-on- write, so that blocks in use are never overwritten, and that deleted blocks are added to a free list. This behavior would spread the free list all over the zpool. As well,
2007 Oct 24
182
Yager on ZFS
Not sure if it''s been posted yet, my email is currently down... http://weblog.infoworld.com/yager/archives/2007/10/suns_zfs_is_clo.html Interesting piece. This is the second post from Yager that shows solaris in a pretty good light. I particularly like his closing comment: "If you haven''t checked out ZFS yet, do, because it will eventually become ubiquitously implemented
2012 Jun 15
3
[HYBRID] : mapping IO mems in the EPT
Hi guys, During my refresh to latest linux, I noticed, direct mapping of all non-RAM pages in xen_set_identity_and_release(). I currently don''t map all at front, but as needed looking at the PAGE_IO bit in the pte. One result of that is minor change to common code macro: __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE) to to __set_fixmap(idx, phys, PAGE_KERNEL_IO_NOCACHE)
2007 Sep 18
1
zfs-discuss Digest, Vol 23, Issue 34
Hello, I am a final year computer engg student and I am planning to implement zfs on linux, I have gone through the articles posted on solaris . Please let me know about the feasibility of zfs to be implemented on linux. waiting for valuable replies. thanks in advance. On 9/14/07, zfs-discuss-request at opensolaris.org <zfs-discuss-request at opensolaris.org> wrote: > Send
2017 Apr 05
2
Slow population of Properties in Windows Explorer
Hello, We recently deployed Samba 4.5 on Debian Jessie-derived Linux with kernel v4.5.7 sharing an XFS filesystem. We are migrating a large data set from old NetApp filers to the Samba share. While attempting to monitor the progress of the migration, we are observing very slow population of filesystem metadata in the Properties window (specifically the General tab for info like "Size"
2017 Apr 07
0
Slow population of Properties in Windows Explorer
On Wed, Apr 05, 2017 at 02:21:48PM -0400, Andrew Richards via samba wrote: > Hello, > > We recently deployed Samba 4.5 on Debian Jessie-derived Linux with kernel v4.5.7 sharing an XFS filesystem. > > We are migrating a large data set from old NetApp filers to the Samba share. While attempting to monitor the progress of the migration, we are observing very slow population of
2018 Apr 16
0
File system permissions - setgid bit and Netapp NFS volumes
On Fri, 23 Mar 2018 09:53:00 -0700 Shaun Johnson <shaun at linuxmagic.com> wrote: > Greetings Dovecot List, > > I have a bit of an edge case I am trying to resolve. I am currently > using dovecot on Ubuntu 14.04 - Ubuntu package version: > > 1:2.2.9-1ubuntu2.3 > > I have attached the output of doveconf -n to this email - but to > describe the configuration
2015 Apr 29
2
nfs (or tcp or scheduler) changes between centos 5 and 6?
m.roth at 5-cent.us wrote: > Matt Garman wrote: > >>We have a "compute cluster" of about 100 machines that do a read-only >>NFS mount to a big NAS filer (a NetApp FAS6280). The jobs running on >>these boxes are analysis/simulation jobs that constantly read data off >>the NAS. > > <snip> > *IF* I understand you, I've got one question:
2005 Sep 10
4
Samba compatibility with NetAPP filers.
Jeremy There is NetApp simulator that may help you ! Check now.netapp.com -- Yair
2005 Nov 25
3
Query: Filesystems
Hello, Just a few quick, but not very simple questions...: Do any Linux filesystems (besides XFS) support freezing? (ie. in conjuction with LVM snapshots this can allow a mounted filesystem to be frozen [freezing all processes writing to this filesystem] in a valid state (with possibly dangling unlinked files), the device can be snapshotted via LVM, and the original filesystem unfrozen - the
2017 Apr 07
1
Slow population of Properties in Windows Explorer
I should have noted; we did try an 'ls -R' on the Samba server itself on the same directory to try to rule out the local filesystem being behind the lag. That command returned almost immediately, which led us to believe that something with how Samba is relaying the filesystem metadata to the Windows clients was to blame. Is Windows Explorer querying all the subordinate ACLs recursively
2002 Apr 16
2
Can rsync update files in place?
I've just subscribed, but a search of the archive doesn't indicate this has been handled before... Is there a way to get rsync to not create a new file while transferring and then rename it, but to instead update the existing file in place, i.e. simply write those blocks that have been updated and leave the rest alone? That would be ideal for what I wanted rsync for, namely updating
2011 Feb 08
4
NoSQL Storage Backend
Hello, I found a posting on the mailing list from 2008 "Adding new storage backend to Dovecot" while searching for POP3 and IMAP servers, that allow to use a NoSQL backend rather than a traditional file system. The problem with traditional filesystems is, that they are very limited. You cannot easily extend it, even with RAID 10 all messages may be lost due to a RAID controller
2007 Feb 12
17
NFS/ZFS performance problems - txg_wait_open() deadlocks?
Hi. System is snv_56 sun4u sparc SUNW,Sun-Fire-V440, zil_disable=1 We see many operation on nfs clients to that server really slow (like 90 seconds for unlink()). It''s not a problem with network, there''s also plenty oc CPU available. Storage isn''t saturated either. First strange thing - normally on that server nfsd has about 1500-2500 number of threads. I did