X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=docs%2Fsurvey.txt;h=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391;hb=d92f70685083588e2a7ce6bc312a735f6937b5a6;hp=042c9567560235d28732b759a6dfbd9124bfe1d4;hpb=6c1f39091444e58c33362f0cc086375d9d273e77;p=debian%2Famanda diff --git a/docs/survey.txt b/docs/survey.txt index 042c956..e69de29 100644 --- a/docs/survey.txt +++ b/docs/survey.txt @@ -1,623 +0,0 @@ - - Chapter 20. AMANDA Survey Results -Prev Part IV. Various Information Next - -------------------------------------------------------------------------------- - -Chapter 20. AMANDA Survey Results - - -Jon LaBadie - -Original text -AMANDA Core Team - - -Stefan G. Weichinger - -XML-conversion -AMANDA Core Team - - -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 - - -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 ? -53 no -11 yes -5 what is the -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 - 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 -