-
- Chapter 20. AMANDA Survey Results
-Prev Part IV. Various Information Next
-
--------------------------------------------------------------------------------
-
-Chapter 20. AMANDA Survey Results
-
-
-Jon LaBadie
-
-Original text
-AMANDA Core Team
-<jon@jgcomp.com>
-
-Stefan G. Weichinger
-
-XML-conversion
-AMANDA Core Team
-<sgw@amanda.org>
-
-Note
-
-Refer to http://www.amanda.org/docs/survey.html for the current version of this
-document.
-
-Note
-
-This chapter still needs much more formatting, there are many tables and lists,
-that need to get added. Volunteers welcome. sgw, April, 2005.
-
-Introduction
-
-AMANDA (Advanced Maryland Automatic Network Disk Archiver) is a backup system
-freely available available in source form. For more information about AMANDA
-visit the website http://www.amanda.org.
-Readers of the amanda-users mailing list (approximately 1100 subscribers) were
-asked in April of 2003 to describe their use of the backup system by filling
-out a survey questionnaire that was posted to the mailing list weekly. Seventy
-two (72) surveys were submitted during the month-long collection period.
-In several postings that follow, I will report summaries of the collected data.
-In some cases I've included comments (Surveyor's Notes) of my own reaction to
-the data.
-Later, I plan to recast these results in the form of questions and answers to
-add to the FOM (FAQ-O-Matic) at amanda.org. Should you have any thoughts on
-this please let me know via the list or personal email.
-Jon LaBadie
-<jon@jgcomp.com>
-
-Note
-
-[Surveyor's Note] While the number of submitted surveys neither surprised me,
-nor disappointed me, what did greatly disappoint me personally was this fact:
-Of the twenty five (25) individuals most active on the list (based on number of
-postings for 12 months), only seven (7) bothered to respond to the survey.
-
-Organizations
-
-What follows is a summarization of the responses describing the organizations
-using AMANDA.
- _____________________________________________________________________________
-|Types_of_organizations_using_AMANDA|___|_____________________________________|
-|Category___________________________|Num|Type_________________________________|
-|University_Department______________|20_|_____________________________________|
-|Research_Organizations_____________|10_|medical,_scientific,_engineering,____|
-|___________________________________|___|oceanography,_statistical,_behavioral|
-|Internet_Service_Providers_________|5__|_____________________________________|
-|Data Processing Services |11 |software, graphics, integration, |
-|___________________________________|___|consulting___________________________|
-|Manufacturers (DP) |5 |computers, electronics, |
-|___________________________________|___|semiconductors_______________________|
-|Manufacturers_(non-DP)_____________|4__|rubber,_chemical,_turbine,_video_____|
-|Government_Related_________________|3__|federal,_local,_public_defender______|
-|Service Organizations |4 |publishing, power utility, forestry, |
-|___________________________________|___|money_management_____________________|
-|Small_Office/Home_Office___________|6__|_____________________________________|
-|Others |3 |natural history museum, education |
-|___________________________________|___|charity,_national_opera_and_ballet.__|
-
-
-Note
-
-[Surveyor's Note] The `Categories' were my grouping, they were not on the
-survey. I expected more in the SOHO category.
-
-Note
-
-[Surveyor's Note] Extent of AMANDA usage was asked on the survey. Few indicated
-that their entire firm based their backups on AMANDA, and then only relatively
-small companies (like JG Computing :). Thus the category is `University
-Department' not `University'. Similarly, AMANDA is used by a groups within
-organizations like the chemical manufacturer or computer manufacturer or
-federal government noted above, not the entire entity. But AMANDA may have
-helped produce the tires you are riding on, the workstation you are typing on,
-or to collect the taxes you pay :))
- _________________________________________________
-|Location_of_organizations_using_AMANDA___________|
-|1_Belgium|1_Japan_______________|2_Poland________|
-|1_Canada_|1_Mexico______________|2_Switzerland___|
-|1_Estonia|1_Norway______________|3_Sweden________|
-|1_Finland|1_Portugal____________|5_Germany_______|
-|1_France_|1_United_Arab_Emirates|5_United_Kingdom|
-|1_Italy__|2_The_Netherlands_____|45_United_States|
-
-
-Note
-
-[Surveyor's Note] The totals are greater than number of submitted surveys as
-some respondents described multi-national installations.
-
-Note
-
-[Surveyor's Note] Americans must be procrastinators. For a while, the number of
-non-US submitted surveys exceeded the ones from the US.
- _________________________________________
-|Length_of_AMANDA_usage_at_organization|__|
-|0_-_1_years___________________________|25|
-|1_-_2_years___________________________|8_|
-|2_-_3_years___________________________|13|
-|3_-_4_years___________________________|10|
-|4_-_5_years___________________________|8_|
-|5_-_6_years___________________________|2_|
-|7_-_8_years___________________________|2_|
-|8_-_9_years___________________________|2_|
-|9+_years______________________________|1_|
-|10%_of_responders_>_5_years_use_______|__|
-|33%_of_responders_>_3_years_use_______|__|
-|50%_of_responders_>_2_years_use_______|__|
-|33%_of_responders_<_1_year_use________|__|
-
-Mean and Median are ~29 months (2.5 years)
-
-Note
-
-[Surveyor's Note] Some really long time users of AMANDA. It must do the job.
-
-Servers and Clients
-
-
-AMANDA servers
-
- _________
-|Number|__|
-|1_____|53|
-|2_____|11|
-|3_____|5_|
-|5_____|1_|
-|6_____|1_|
-|7_____|1_|
-
-Table 20.1. Operating Systems Running on AMANDA Server Hosts
- _____________________________________
-|FreeBSD:_______|Total_10,_including__|
-|2______________|4-STABLE_____________|
-|1______________|4.7__________________|
-|1______________|4x___________________|
-|HP-UX:_________|Total_2,_including___|
-|1______________|10.20________________|
-|1______________|11.00________________|
-|Irix:__________|Total_2,_including___|
-|1______________|6.5__________________|
-|SCO_Openserver:|Total_1,_including___|
-|1______________|5.0.6________________|
-|Solaris:_______|Total_14,_including__|
-|5______________|8____________________|
-|1______________|8_x86________________|
-|3______________|9____________________|
-|Tru64:_________|Total_4,_including___|
-|2______________|5.1__________________|
-|Linux:_________|Total_48,_including__|
-|13_____________|Debian_Total_________|
-|1______________|2.4__________________|
-|2______________|3.0__________________|
-|3______________|Woody________________|
-|14_____________|RedHat_Total_________|
-|1______________|6.2__________________|
-|2______________|7.1__________________|
-|1______________|7.2__________________|
-|6______________|7.3__________________|
-|3______________|8.0__________________|
-|1______________|8.0_with_RHNet_kernel|
-|1______________|Slackware_Total______|
-|1______________|7____________________|
-|3______________|SuSE_Total___________|
-|2______________|8.1__________________|
-
-
-AMANDA Versions Run on Server Hosts
-
-2.4.1: Total 2, including
-1 2.4.1p1
-2.4.2: Total 33, including
-1 2.4.2p1
-28 2.4.2p2
-2.4.3: Total 21, including
-1 2.4.3b2
-1 2.4.3b3
-2 2.4.3b4
-2.4.4: Total 21, including
-2 2.4.4-20030415
-1 2.4.4-20030426
-[Surveyor's Note] The percentage of older versions surprised me.
-Shouldn't have as I just upgraded 2 months ago. If it works why fix it?
-
-AMANDA CLIENTS
-
-
-Number of AMANDA Clients
-
-client num.
-hosts sites
-14
-25
-36
-46
-57
-a6-1012
-b11-2013
-21-3012
-31-505
-61-704
-
-Operating Systems Run on AMANDA Clients
-
-(mentions, not number of hosts)
-AIX, total 4, including Linux (all variants), 86 total including
-1 4 Debian, 17 total
-1 2.2
-Darwin, total 1 1 2.4
-2 3.0
-FreeBSD total 17, including 1 potato
-1 2.2.5 2 sarge
-1 3.2 1 sid
-1 3.3 1 stable
-1 3.4 2 woody
-2 4-STABLE Mandrake, 1 total
-1 4.1 1 8
-1 4.7 RedHat, 26 total
-1 5.0 1 5.0
-1 6.0
-HP-UX, 8 total, including 2 6.2
-1 10 1 6.2 Alpha
-2 10.20 2 6.2 Sparc
-3 11 3 7.1
-2 7.2
-Irix, 8 total, including 4 7.3
-3 6.5 5 8.0
-1 6.5 MIPS 1 9
-Slackware, 3 total
-MacOS X, 6 total, including 2 7.0
-1 10.1 PowerPC 1 8.1
-1 10.2 PowerPC SuSe, 4 total
-2 8.1
-NetBSD, 1 total, including Yellowdog, 1 total
-1 1.6 1 2.3 PowerPC
-OpenBSD, 1 total, including Tru64, 8 total, including
-1 3.2 1 4.0 Alpha
-1 5.1
-Snap, 1 total
-Windows, 22 total, including
-Solaris, 39 total, including 1 95
-2 2.5 2 98
-2 2.6 4 NT
-5 7 1 NT 4 server
-11 8 7 2000
-4 9 3 XP
-3 8 x86
-1 9 x86
-SunOS, 1 total, including
-1 SunOS 4.1.4
-
-AMANDA Versions of Run on Client Hosts
-
-2.4.1, 4 total, including
-3 2.4.1p1
-2.4.2, 42 total, including
-1 2.4.2p1
-33 2.4.2p2
-2.4.3, 30 total, including
-1 2.4.3b2
-1 2.4.3b3
-1 2.4.3b4
-2.4.4, 25 total, including
-2 2.4.4-20030415
-1 2.4.4-20030426
-1 2.4.4b1
-
-Installation Properties
-
-
-Total Disk Capacity of Clients
-
-smallest: 20 GB
-largest: 5000 GB
-13 20 to 100 GB
-22 101 to 200 GB
-16 201 to 500 GB
-12 501 to 1000 GB
-5 1001 to 2000 GB
-6 2001 to 5000 GB
-
-Total Data Currently Stored on Clients Disks
-
-smallest: 3 GB
-largest: 4000 GB
-22 3 to 50 GB
-14 51 to 100 GB
-15 101 to 200 GB
-10 201 to 500 GB
-7 501 to 1000 GB
-5 1001 to 4000 GB
-
-Average Size of a Single Backup
-
-smallest: 0.3 GB
-largest: 700 GB
-22 0.3 to 10 GB
-11 11 to 20 GB
-22 21 to 50 GB
-13 51 to 100 GB
-8 101 to 200 GB
-1 350 GB
-1 700 GB
-
-Backup Program Used
-
-72 use gnutar or some tar variant including:
-3 hfstar
-1 nttar
-1 smbtar
-50 use dump or some dump variant including:
-1 e2fsdump
-2 ext2dump
-12 ufsdump
-2 vdump
-1 vfsdump
-2 vxdump
-5 xfsdump
-
-Dumpcycle
-
-5 0 days
-3 1 days
-1 2 days
-6 3 days
-5 5 days
-34 7 days
-17 8 days - 2 weeks
-10 15 days - 4 weeks
-5 30 days - 75 days
-1 4 months
-1 6 months
-1 1 year
-1 1000 days
-
-Frequency of Backups
-
-6 1/week
-4 2/week
-4 3/week
-5 4/week
-36 5/week
-6 6/week
-31 7/week
-2 1/month
-
-Type of Compression Used
-
-1 gpg
-15 none
-17 hw
-31 sw - server
-46 sw - client
-
-Installed Hardware
-
-
-Brand and Model of Tape Drive Used at AMANDA Installations
-
-The number of mentions of each brand is shown
-followed by specific models where reported.
-3 Archive, including: 2 Qualstar TLS-4200
-Python 04106
-Python 06408 10 Quantum, including:
-DLT-VS80
-5 Compaq, including: DLT-4000
-AIT-2 DLT-7000
-DLT-90 DLT-8000
-MSL5126-S2
-SDLT320 10 Seagate, including:
-DAT
-1 Dell DLT-IV 12/24G
-20/40G
-5 Ecrix, including: CTL-96/4586N
-VXA-1 DDS4
-DDS3 Scorpion-24/STD124000N
-5 Exabyte, including: 13 Sony, including:
-8500 AIT-1
-Eliant 820 AIT-2
-VXA-2 AIT-3
-DLT-IV
-15 HP, including: DLT-9000
-A4845A SDX-500C
-C1533A Sony SDX-700C
-C1557
-C6280-7000 3 Sun, including:
-DDS-4 DDS3
-DLT vs80 7000
-ESL9595 Python
-SureStor DAT-24
-SureStor DAT-8 7 Tandberg, including:
-Surestore Ultrium 230e DLT vs80
-Ultrium 1 SDLT 220
-SDLT-320
-1 IBM DDS4 SLR5
-SLR7
-1 Mammoth
-2 Wang, including:
-3 None, backup to disk only DAT 3400DX
-2 Overland Data, including:
-Loaderexpress DLT8000
-
-Native Tape Capacity of the Above Drives
-
-7 4 GB 8 35 GB
-1 7 GB 13 40 GB
-2 10 GB 8 50 GB
-11 12 GB 1 60 GB
-1 15 GB 1 80 GB
-1 17 GB 7 100 GB
-10 20 GB 1 110 GB
-1 22 GB 3 160 GB
-4 25 GB 1 500 GB
-2 30 GB
-
-Preferred Brand of Tape
-
-2 Compaq
-1 Dell
-4 Exabyte
-3 Fujifilm
-5 HP
-1 Imation
-2 Maxell
-2 Quantum
-11 Sony
-1 Verbatim
-16 No Preference
-
-Tape Format
-
-1 4mm 1 EXA
-4 8mm 3 LTO
-2 AIT 1 Mammoth
-1 AIT-1 4 sDLT
-7 AIT-2 1 sDLT320
-3 AIT-3 1 SLR
-8 DDS-2 1 SLR25
-12 DDS-3 1 SLR7
-6 DDS-4 1 Travan-20
-15 DLT 1 VXA
-1 DLT-80 1 VXA V-23
-7 DLT-IV 1 VXA-2
-
-Tape Changers/Libraries Used at AMANDA Installations
-
-[Surveyor's Note] A total of 28 of 72 respondents reported having using
-tape changer or library. Several of those reported having more than one.
-Surprisingly, the 28 respondents reported 26 distinct models of changer/
-library.
-The table below shows the models reported by 28 respondents. Where multiple
-reports for the same model existed, only one entry is show. Where the
-multiple reports showed different configurations (eg. 1 drive vs 2 drive),
-only the larger configuration is shown.
-BRAND MODEL # of # of total
-drives tapes capacity
-ADIC ?? 1 4 200 GB
-ADIC FastStor DLT 1 7 245 GB
-Compaq MSL5126 1 25 4000 GB
-Compaq SSL2020 2 20 1000 GB
-Dell Powervault 122T 1 8 320 GB
-Hewlett-Packard A4845A 5 588 20000 GB
-Hewlett-Packard C1557A 1 6 72 GB
-Hewlett-Packard ESL9595 2 595 70000 GB
-Hewlett-Packard MSL5026S2 2 26 4160 GB
-Hewlett-Packard SureStore 6x40 1 6 120 GB
-Hewlett-Packard SureStore 6x24 1 6 72 GB
-Overland Data LXB 4120 1 10 150 GB
-Overland Data Library Pro 1 19 1900 GB
-Overland Data LoaderXpress 1 15 525 GB
-Qualstar 6220 2 20 700 GB
-Qualstar TLS-4200 2 20 2000 GB
-Quantum DLT7000 2560 1 8 320 GB
-Segate CTL-96/4586N 1 4 14 GB
-Sony TSL-9000 1 8 96 GB
-SpectraLogic Bullfrog 10000 3 40 10000 GB
-SpectraLogic Treefrog 2000 1 15 750 GB
-StorageTek Timberwolf 9730 2 30 1000 GB
-Straightline Harrier/830 2 30 1500 GB
-Sun L20 2 20 2000 GB
-Sun L40 2 40 1600 GB
-Sun Storedge L9 1 9 360 GB
-
-Special Feature Usage
-
-What follows is a summarization of the responses describing the
-use of two special features of recent versions of AMANDA, the
-"file:driver" to use a hard disk drive as a backup device and
-RAIT (Redundant Array of 'Inexpensive' Tapedrives) to allow
-mirroring or striping of backups across multiple drives.
-
-The file:driver
-
-Do you use the <file:driver>?
-53 no
-11 yes
-5 what is the <file:driver>
-If not, do you expect to?
-32 no
-14 yes
-8 maybe
-
-RAIT
-
-Do you use RAIT?
-68 no
-0 yes
-If not, do you expect to?
-40 no
-8 yes
-3 maybe
-[Surveyor's Note] I was mildly surprised, and amused, by the 5 "what is the
-<file:driver> responses. And considering those responses, but the lack of
-similar responses to the RAIT question.
-[Surveyor's Note] No respondent uses RAIT! Disappointing. I wonder if any
-site is currently using this feature.
-
-Non UNIX Clients
-
-What follows is a summarization of the responses describing the
-various methods to backup 'non-unix' clients, mostly PC's running
-versions of Windows.
-
-PC's Backed Up Using SAMBA Connections to AMANDA Clients
-
-A total of 22 survey respondents (of 72) report
-they use amanda and samba to backup PC clients.
-10 have 1 PC client
-10 have 2 - 5 PC clients
-1 has 15 PC clients
-1 has 40 PC clients
-[Surveyor's Note] From these results it seems to me that amanda/samba
-is seldom a first choice for backing up PC's. Instead it seems to be
-used when a site has an existing amanda installation and would like
-to implement some form of PC backup.
-The respondents mentioned the following Operating Systems
-were being run on the PC clients. The number is the number
-of mentions, not number of PC's.
-1 Windows 95 2 Windows 2000 Server
-1 Windows 98 5 Windows XP
-3 Windows NT 1 Windows XP Pro
-2 Windows NT 4 1 Snap Server
-9 Windows 2000
-[Surveyor's Note] Of interest to users running Lotus Domino:
-One respondent reported using "The Open File Manager"
-from http://www.stbernard.com to create online backups of
-their Lotus Domino database files which then could be
-backed up to their amanda host using samba.
-
-PC's Backed Up Using Cygwin/AMANDA Client Software
-
-A total of 4 survey respondents (of 72) report
-they use a cygwin/amanda client to backup PC clients.
-2 have 1 PC client
-1 has 3 PC clients
-1 has 15 PC clients
-The only PC operating systems mentioned were
-Windows 2000 and Windows 2000 Server.
-
-PC's Backed Up by AMANDA Using Other Techniques
-
-A variety of techniques, other than samba or cygwin,
-were described by respondents to backup PC's
-1. Two respondents installed an NFS server on Windows 2000
-and then NFS mounted the PC disks on the amanda host
-and backed them up as local file systems.
-2. Similarly, two respondents mounted PC shares of Windows 95,
-Windows NT, and Windows 2000 on the amanda host using 'smbmount'
-and backed them up as local 'smbfs' file systems.
-3. Several respondents reported they first backed up their PC's
-(Windows 98, Windows 2000, Windows XP, Windows 2000 Server)
-to disk files on the PC's and then backed that file up using
-amanda; presumably using samba or some file transfer technique.
-One mentioned that the backup stream was sent directly to a
-Linux host and backed up there as a local file.
-The backup programs the respondents mentioned included:
-'Windows backup program'
-'BackupPC', a Linux opensource program
-'Win2000 Backup Tool'
-'Backup Exec'
-4. One respondent noted their firewall was a PC running linux.
-That system was mirrored using rsync and the mirror was backed up.
-
-Other Backup Techniques Mentioned
-
-Five respondents described backing up systems using "non-traditional"
-methods. These methods were used to backup systems running either
-MacOS or Windows. They included:
-1. MacOS 9, mounted (NFS?) onto a Linux host and backing up the mounts as
-local filesystems.
-2. Backing up 37 MacOS 8 and MacOS 9 systems using the program Retrospect.
-The output of Retrospect was transferred to a Linux host using ftp and
-preserved with amanda.
-3. Build a native amanda client on MacOS X and use hfstar instead of gnutar.
-4. Backup 6 Windows XP hosts using a native windows amanda client.
-5. Backup 12 Windows 2000 Server hosts using a native windows amanda client.
-This respondent also noted their intention to switch to a cygwin/amanda
-client in the near future.
--------------------------------------------------------------------------------
-
-Prev Up Next
-Chapter 19. AMANDA WISHLIST Home Part V. Technical Background
-
projects / debian / amanda / blobdiff