-
- Cyrus version: 1.6.24
- Server specs:
- OS: Solaris 7
- System: Sun Ultra 2
- Mem: 1.5GB
- IO: 2 Fast/Wide SCSI controllers, 200GBytes of usable disk (raid 0+1)
- Accounts on each server: About 500 active
- Average users active: 400
- Average/Peak number of messages in folders: Not sure, peak >1,000
- Using murder: no
- Source: Private
-
- Cyrus version: BETA 2.2
- Server specs:
- OS: FreeBSD? 4.8-STABLE
- System: Dual-xeon 2Ghz
-
-
- Mem: 1Gb
- IO: 120Gb Raid5 HW
- Accounts on each server: 8,500
- Average users active: Not sure, about 10 logins/s
- Average/Peak number of messages in folders: about 4 mb used per account
- Using murder: No
- Comments: Yes sure, cyrus is good. will try to contribute and write some documentation/patches
- Source: International ISP
-
-
- Cyrus version: cyrus-imapd-2.1.11, cyrus-sasl2-2.1.13
- Server specs:
- 4 backend mail stores (all identical)
- OS: Redhat 7.1 Kernel 2.4.18-17.7.x
- System: PIII 1Ghz
- Mem: 1GB
- IO: 4 - 40GB U160 Drives, Mylex 352 w/ Battery Backup
- 2 Front End Proxies (currently running custom code with plans to switch to murder to get unified namespace)
- System: PIII 1Ghz
- Mem: 1GB
- IO: 1 9G U160 drive
- 4 backend mail stores (all identical)
- Notes: Front Ends also provide internal SMTP and LDAP. 4 External (outside firewall) SMTP mail handlers and 3 KDCs for Kerberos. LDAP is mastered on yet another machine. All SMTP handlers run Sendmail+Mimedefang+Spamassasin+McAfee and are using LDAP routing for short-circuit delivery of inbound email. (virus scanning really increases the load on SMTP relays btw) WebMail? is provided on a separate machine using IMP.
- Accounts on each server: 400-700
- Average users active: Average 600-800 concurrent users across the cluster. We've seen login rates of 5-10/second.
- Average/Peak number of messages in folders: No idea. Most users have 50Mb quotas. I have a few users with 1Gb mail stores.
- Using murder: We've tested murder and plan to deploy it -- a good authentication backend makes murder easier to deploy.
- Comments: We've been using Cyrus since 1.5.14 (late 1998). This is our second generation of hardware but we deployed a cluster from the start. I've posted several notes to the list over the years regarding our performance tuning etc. (performance tuning was required to get the level of stability we require) Someday I need to get all the information up on a webpage. Cyrus has worked wonderfully in our environment. Stability has been great (for example the first system of our 2nd generation install has been up since it was installed - 340 days)
- Source: Paul Fleming pfleming@siumed.edu Southern Illinois University School of Medicine Springfield IL USA.
-
- Cyrus version: 2.1.11
- Server specs: (4 servers)
- OS: Solaris 7
- System: Sun Enterprise 220 R with one CPU
- Mem: 2G
- IO: Fiber Channel SAN architecture with two Sun T3's
- Accounts on each server: Average is 15102. Total accounts 6040. (not all active)
- Average/Peak number of messages in folders: Big guesses. A lot of people don't keep any on the server. Others have over 1000. A few have over 100 folders.
- Using murder: Not Yet. Want to. Will make our shared mailbox server integrate much nicer.
- Comments: Authentication methods are GSSAPI, KERBEROS_V4 TLS+PLAIN PLAIN The PLAIN methods use saslauthd, wich is using the kerberos4 mechanism. Sadly, we still have a memory leak using kerberos5, and the -n 0 flag actually slows down authentication too much due to the forking overhead.
- Average users active: Average is between 700 and 1000. Peaks as high as 1400.
- Source: Earl Shannon Earl_Shannon@ncsu.edu North Carolina State University, Information Technology Division http://www.earl.ncsu.edu
-
- Cyrus version: Cyrus IMAP 2.3.12
- Server specs:
- OS: Solaris 10
- System: Dual AMD-Opterons (quad core boards)
- Mem: 20G
- IO: 10 TB FiberChannel? RAID/SAN, 2 FC-Cards
- Notes: ZFS with Snapshots, using OpenSSL? 0.9.8 for TLS support, Berkeley DB 4.4.20 for duplicate suppression DB and tls session DB, all others skiplist. We experienced performances issues with lmtpd and skipklist as deliver.db.
- Accounts on each server: 15000
- Average concurrent users active: approx 1000
- Average/Peak number of messages in folders: max 55000, 33 million mail files on disk
- After using graylisting (http://southbrain.com/graylisting) on our two entry bastion nodes, load has dropped to 1-2 deliveries/sec.
- Using murder: No
- Source: Pascal, Gienger, Pascal.Gienger@uni-konstanz.de, University of Konstanz, South Germany
-
- Cyrus version: 2.1.16
- Server specs:
- Accounts on each server: about 1,700
- Average users active: Average user count ~550
- Average/Peak number of messages in folders: We have 500MB quota
- Using murder: No
- Comments: I tested all opensource imap servers I could find and there is none like cyrus
- Source: Simon Matter
-
- Cyrus version: 2.1.16
- Server specs:
- OS: Debian stable
- System: Dell 2650, dual 2.8GHz P4 cpus, PERC3/DC Raid controller
- Mem: 2G
- IO: Dell PowerVault? 220S external Raid disk array, fourteen 73GB 15k drives, configured as Raid 1+0.
- Accounts on each server: 35,000
- Average users active: On a given weekday, about 7500 different users login to the server, with about 250,000 logins total. average about 300 imapd processes during the day
- Using murder: No
- Comments: it has been an excellent performance boost over our old UW-IMAP based system
- Source: Andy Morgan, Central Computing, Oregon State University morgan@orst.edu
-
- Cyrus version: 2.1.13
- Server specs:
- OS: Linux 2.4.x
- System: Dell Dual P4-2.4 (HT)
- Mem: 2GB
- IO: Mylex ExtremeRaid? 3000 w/7 36GB 10 (or 15k) RPM FC disks
- Accounts on each server: About 5000 active
- Average users active: 76 average & 109 max concurrent POP3 connections
- Average/Peak number of messages in folders: Not sure
- Using murder: no
- Source: Private
-
- Cyrus version: 2.2.2-BETA
- Server specs:
- OS: Solaris 9 (08/03)
- System: SunFire? V210 2x 1GHz US IIIi cpu
- Mem: 2GB
- Storage: 2x 36GB (mirrored) internally U-SCSI
- Accounts: 8832 over 44 virtual domains
- Using murder: no
- Also does MimeDefang? and SpamAssassin?
- Load generally below 10%
- Source: Paul Boven, SARA High Performance Computing and Networking http://www.sara.nl
-
- Cyrus version: 2.2.8
- Sever specs:
- OS: Solaris 9
- System: Sun Fire 280R 2x (900mhz US-III+)
- Mem: 4GB
- Storage: 1TB EMC-CX300 via FibreChannel? SAN fabric
- Accounts: average 14,000
- Average Concurrent Usage: 105
- Average Business Hours Connections Per Second (POP3/IMAP): 7.6
- Using Murdur: no
Topic revision: r42 - 15 Nov 2008 - 09:43:16 - PascalGienger
 |
|
Copyright © by the contributing authors. All material on this collaboration platform is the property of the contributing authors. Ideas, requests, problems regarding TWiki? Send feedback