similar to: NetApp NFS vs. ZFS and NFS for Maildir

On Fri, 11 Mar 2016 11:58:00 -0300 Juan Bernhard <juan at inti.gob.ar> wrote: > > El 11/03/2016 a las 11:22 a.m., Alessio Cecchi escribi?: > > Hi, > > > > I'm evaluating to switch from NetApp to a ZFS appliance (like Qsan). Our > > setup is Dovecot, Maildir for email storage and NFS to share mailboxes > > (more than 30k users) across POP/IMAP and MX

Hi Rowland, My smb.conf is showing below: server string = "Samba Server" security = ADS realm = QSAN.AD.COM workgroup = QSAN encrypt passwords = Yes winbind enum users = Yes winbind enum groups = Yes winbind cache time = 1800 idmap config * : backend = tdb idmap config * : range = 1000000-5000000 idmap config QSAN : backend = rid idmap config QSAN : range = 6000000-8000000 idmap config

Hi all, I have an question about getting child domain users on Samba 4.10.7. 1. I have the command net ads search '(objectCategory=trustedDomain)' -P and already get the info below: objectClass: top objectClass: leaf objectClass: trustedDomain cn: hardware.qsan.ad.com distinguishedName: CN=hardware.qsan.ad.com,CN=System,DC=qsan,DC=ad,DC=com instanceType: 4 whenCreated: 20180611041431.0Z

Hi, I'm running 3 Dovecot director and 6 Dovecot backend on CentOS 6 and Dovecot 2.3.10, with Maildir shared on NFSv3 (on NetApp). Since CentOS 6 will be EOL on November I started to upgrade to CentOS 7 the first Dovecot backend. But after Director start to direct users on new CentOS 7 server some errors, for any users, come up, an example: Aug 21 14:56:41 Error: imap(alessio at

Hi, we have a storageserver (Centos 6.4) with a dualport Intel 10G X520-2 Adapter. A QSan P600Q-D316 Storage is configured with 8*SATA Drives raid 5 for test, connected trought a Cisco UCS 6100 Series Fabric Interconnect 10G Switch. I formated the storage with ext4 defaults, one volume and got r/w rates about 10MB/s some up to 40MB/s .... VERY POOR.... So we returned the storage to our dealer

just a quick update: no issues with NFSv4.0 (load is slowly growing, currently ~7k mailboxes) instead, bad news from delegation front, we enabled it for a couple of days but we ran in ugly issues: processes went in "uninterruptible sleep" state, load average gets huge, reboot was the only escape :-( -brd Alessio Cecchi wrote: > Il 12/06/2015 13:02, brd ha scritto: > >Alessio

Hi, Just out of curiosity what is in nfsv4 delegation that you think would give a benefit on your configuration? If I read back the thread you seem to have dovecot configured with director ring in front of the backends. In that case Dovecot already manages storage in a way that only one of the backends is accessing each users data at a time. So I can?t see anything but problems form enabling

Alessio Cecchi wrote: [...] > Have you already try to run NFSv4? it's in place on a (very) small sample of mailboxes in dbox format, no issues up to now (Debian Wheezy mainline kernel) > When we switch to netapp and nfsv4 we had many problems (lock problems > and instability) and we had to go immediately to NFSv3. I don't know if > was a netapp problem or nfs client (Debian

Hello I have troubles with some shares that are NFS mounted to a Netapp filer, if I enable locking on that share, the file cannot be opened by the windows client in write mode ( read only after a looong time ) Anyone has the same problem , it seems to be a Netapp bug but they do not support samba at all :-) so I don't expect any answer from them. thanks

I've been experiencing some intermittent problems accessing at NetApp server via NFS and automount. I'm running CentOS 5.2 (fully updated) on all my servers and workstations. Usually, everything is working just fine, when suddenly we get the following error: /bin/sh: /home/epd/srcref/swtools/Crontabs/ run_release_requests.sh: Permission denied This is actually an email from

Hello Maybe someone could direct us to right solution with the problem descibed below. We tried different trick bo no success stories. We have a development cluster based on Dell R815 servers (+-30) and a storage server - Netapp FAS 3240 runnig Data Ontap 8.1p2. We have some 100 virtual servers - we use Xen 4.1 for virtualisation. A basics OS is Debian Squeeze with some backports packages

hi all, i'm managing a large installation of a dovecot cluster in director + NFS backend architecture and we are moving from NFSv3 to NFSv4. Our NFS server is a Netapp in clustered mode and reading technical specs of NFSv4 delegation feature it seems that enabling delegation in this type of dovecot architecture should bring great benefits: only one backend server access a specific mailbox at a

Dear list, Is it possible to give a notification about password exprire warning to users authenticated by OpenLDAP when the users login via dovecot using IMAP or POP? For example, when you ssh to a server and/or run ldapsearch, you can be warned with password expire warning like below: # ssh testuser at localhost testuser at localhost's password: Your password will expire in 31 minute(s).

Hello, We have long running problem with NetApp filers. When we connect server to the filer sequential read performance is ~70MB/s. But once we run database on the server seq read performance drops to ~11MB/s. That's happening with two servers. One is running Oracle another - MySQL. During speed tests database load is very light (less than 1MB/s of reads and writes). During the tests NetApp

On 8/18/2015 10:46 AM, Alessio Cecchi wrote: > Hi, > > in this tipical setup (Dovecot/Director thate share Maildir via NFS) on > your NFS Server you have (about) 90% of read operations and only 10% of > write operations. > > If you see detailed stats for NFS operations you have 40-50% of GETATTR, > this means that NFS/Dovecot clients are caching data (mainly dovecot >

Hello dovecot! I administer a dovecot installation with 30k users. I've got 4 dovecot directors as frontend and 10 backends. The mailbox are now in maildir format, with maildir++ quota, on a shared netapp filer. Indexes are local on each backend. I'm reconfiguring the quota plugin: as a first step, I want to use the clone plugin to keep a copy of the quota on a redis database. Next,

> On 25/08/2020 16:43 Alessio Cecchi <alessio at skye.it> wrote: > > > Hi, > > I'm running 3 Dovecot director and 6 Dovecot backend on CentOS 6 and Dovecot 2.3.10, with Maildir shared on NFSv3 (on NetApp). > > Since CentOS 6 will be EOL on November I started to upgrade to CentOS 7 the first Dovecot backend. > > But after Director start to direct

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

Hi Timo, dovecot 1.2.0 is great! Faster and more stable on mboxes that 1.1.x by far... good job :-) Today I stumbled over a strange problem when I tried to subscribe an existing Mailbox (mbox), which doesn't work. Thunderbird IMAP log -------------------- 9932[4124558]: 40f3498:imap.fh-trier.de:A:SendData: 11 subscribe "Mail/Archiv/1998" 9932[4124558]: ReadNextLine

On Sun, 13 Mar 2016 09:45:06 +0000 James <lista at xdrv.co.uk> wrote: > On 11/03/2016 15:17, Stephan von Krawczynski wrote: > > > zfs set sync=disabled ? > > Only if you are happy to loose data on power failure. I don't know the actual setup, but if you have no UPC you shouldn't host email services anyway. -- Regards, Stephan