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backup

In information technology, a backup, or data backup is a copy of computer data taken and stored elsewhere so that it may be used to restore the original after a data loss event. The verb form, referring to the process of doing so, is "back up", whereas the noun and adjective form is "backup". Backups can be used to recover data after its loss from data deletion or corruption, or to recover data from an earlier time. Backups provide a simple form of disaster recovery; however not all backup systems are able to reconstitute a computer system or other complex configuration such as a computer cluster, active directory server, or database server.A backup system contains at least one copy of all data considered worth saving. The data storage requirements can be large. An information repository model may be used to provide structure to this storage. There are different types of data storage devices used for copying backups of data that is already in secondary storage onto archive files. There are also different ways these devices can be arranged to provide geographic dispersion, data security, and portability.
Data is selected, extracted, and manipulated for storage. The process can include methods for dealing with live data, including open files, as well as compression, encryption, and de-duplication. Additional techniques apply to enterprise client-server backup. Backup schemes may include dry runs that validate the reliability of the data being backed up. There are limitations and human factors involved in any backup scheme.

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  1. C

    1990 FL house, split plan, pvc pipes. Grey water backup @ master tub.

    Hello. I have lived in this circa 1990, split floor plan house in FL for 23 years w/ no plumbing problems. Recently, slight amounts of grey water sporadically back up in the master tub. Timing is unknown—never actually see it happen, however the dirty evidence is there. Plumber has used...
    • CCGriff
    • Thread
    • america backup grey house master pipes pvc split usa water
    • Replies: 4
    • Forum: USA
  2. S

    Installing a Pellet Burner with Gas Boiler as Backup

    I'm an end user with limited knowledge of plumbing and just trying to get an understanding of options available to me. We currently have a Valiant Combi Boiler Sealed Unvented Heating system. It was installed 3 years ago and works perfectly well for both CH & HW. Recently we built an...
    • stepto
    • Thread
    • backup boiler burner gas gas boiler installing pellet
    • Replies: 0
    • Forum: Renewables
  3. S

    I have a problem with fixing up a backup for my bio boiler

    Morning I have a bio boiler with thermostore, This past couple of winters I have struggled to keep temp up so I went and bought a 2nd hand combi GRANT boiler. Is there anyway it can be converted to work as a system type boiler with some sort of thermostatic switch to allow it to kick in when...
    • Steep82
    • Thread
    • america backup boiler fixing problem usa
    • Replies: 7
    • Forum: USA
  4. M

    Flowmasta 3439g backup

    Hi, I am a DIY er not a tradesman but would like a bit of info/advice about the Flowmasta 3439g 2 channel boiler controller. I had a new oil boiler installed in September with one of these controllers. Normally it is set to CH on and HW off. I have since discovered that in the event of a...
    • Matf
    • Thread
    • america backup usa
    • Replies: 11
    • Forum: USA
  5. N

    Backup from Shower Cubicle?

    I went into a flat I have been preparing for sale today to find a fair amount of water on the basement floor. The insulation under the floor was soaked in 4 different areas. looking upstairs the shower cubicle was covered in dark sediment. We called a plumber out who did a thorough check of...
  6. N

    nursery school backup boiler?- advice needed

    Hi all, Ive just had the usual problem where our great 'old school' plumber is expected to have a BSC in electronics engineering. The problem is we have four 45KW boilers and a lot of radiators in a charitable kids nursery (the hot water is a separate system altogether!) They're all knackered...
    • Newcastleguy
    • Thread
    • advice backup boiler boilers cheap compensator condensing gas hot hot water jobs keston needed oil plumber plumbing problem pumps radiators school system vaillant waste water weather work
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
  7. R

    Heating calculation for toilet in a basement

    I have been asked to install a heater in a currently unheated toilet situated in the basement of a commercial premises. Please check my calculations and assumptions, and give your thoughts on my proposed solution assumptions: room size = 1.5m long x 0.85m wide x 3m high U value = same for...
    • ringer
    • Thread
    • backup basement calculation ceiling costs electric fitting heat loss heater heating install installation oil pipes plug remove running costs timer toilet trv waste wide
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  8. P

    What are your top five boilers ?

    Hi guys, if you were working on a new installation using the exciting pipe work which was already in place, and the propherty layout was as follows hallway, front room, kichen, and three bed rooms and bathroom, i would like to know what would be the top five boilers installers would consider for...
    • plumbow
    • Thread
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    • Replies: 31
    • Forum: Plumbing Jobs | The Job-board
  9. K

    Warmflow Combi Boiler

    I had this oil combi boiler fitted four years ago and it has never worked properly, it now turns out the pressure vessel is knackered and the heat exchanger isnt working either. Warmflow have refused to replace the parts despite the fact there is a 5 year warranty on them. Their backup service...
    • knobblyknuts
    • Thread
    • air backup bar boiler boilers combi combi boiler combination free hot hot water oil parts pipes plumbing pressure problem radiators vessel warmflow waste water worcester
    • Replies: 15
    • Forum: Plumbing Jobs | The Job-board
  10. M

    Newbie needing help. :)

    Ok, this has baffled me and I really don't know where else to look. My downstairs radiators, and downstairs only won't work. They're all fed from seperate radiators from upstairs, but none will work. Upstairs, they're great..all roastin' hot. Anyone any ideas? Someone please help, 'cos...
    • mrwinkywoo
    • Thread
    • air backup cold fed flow head heating help hot hot water needing newbie problem pump radiators sludge system vent water work
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  11. I

    Megaflo suddenly stopped heating

    I've had a megaflo for many years without problems. Serviced (fairly) regularly. It has suddenly stopped producing hot water. The pressure is good but the water is cold. I've noticed the outlet pipe feels warm and you get a couple of seconds of warm water then it goes cold. Leave it for a...
    • izzyk
    • Thread
    • backup boiler building central heating system circulation cold heater high hot hot water megaflo pipe plumber plumbing pressure problem safe stopped valve vessel warm water water work
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  12. W

    Air source Heat pump - a few questions

    I have moved into a new build house which is heated by an air source heat pump. is it correct that they do not need servicing/maintenance or is that a high risk strategy Do any companies provide insurance cover in the same way you can cover a conventional boiler There is a sporty household of...
    • willow2
    • Thread
    • air backup central central heating electric flow heat heat pump heating high hot hot water insurance pump questions shower showers source store system tips water work
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  13. M

    would you belive it!

    bought a printer from asdas last week - 50 quid 3 free cartridges had it a week black wasnt printing - no reciept as printer was bought with load of shopping and missis left it in trolley.... so off i goes to asda - plonks it on customer service desk - sorry we cant repplace as you havent got...
  14. M

    Danfoss fp715

    Hello, turned my boiler off at the fused spur before going on holiday. got back,turned it on now it won`t turn the boiler on. there is a test button on the boiler for engineers and this does turn the boiler on. but when i press the overrun buttons for hot water or heating,the programer still...
    • malc
    • Thread
    • backup boiler button central heating system danfoss hot hot water overrun test thank you water
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  15. G

    Back Boilers & ceiling fans

    Anyone had much dealings with BBU's/fires and ceiling fans in same room? I am aware the regs state that spillage test should be carried out with fan at all speeds etc., but this does not give any indication about the fans effect on the flue pull for the back boiler. There have been a number of...
    • GrahamM
    • Thread
    • air air vent appliance backup boiler boilers ceiling cooker fan head install installation insulation job kitchen newbie oil plug rules safe test vent wide work
    • Replies: 24
    • Forum: Plumbing Jobs | The Job-board
  16. P

    In a bit of fix regarding my Gas Safe inspection

    Put myself on the register bout 3 weeks ago and today I have recived a latter asking to come and see three jobs I have done. Thing is I havent started trading yet so wont have completed 3 jobs by then. I am still working for the company at the moment. Obviously I am going to call them monday...
    • Plucky
    • Thread
    • backup boiler cooker corgi fitting fix gas gas engineer gas fire gas safe gas safe inspection gas safe register gsr guide inspection install installation jobs regarding register safe safety skills trap work
    • Replies: 12
    • Forum: Plumbing Jobs | The Job-board
  17. G

    remeha 18system

    Hi fitted my first remeha boiler today the 18kw system boiler and found it odd that the condense pipe outlet has no rubber on it the outlet is the same size as the overflow pipe rang technical helpline to see if it was missing and was advised that i should warm pipe up and slide it over...
    • gas1
    • Thread
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    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  18. B

    What is the best Combi Boiler ?

    I need to fit a Combi boiler, just wounderd what you guys would recommend? Any outstanding makes out there ? the house has 7 rads on the system & 1 medium sized bathroom.
    • Benphilpott
    • Thread
    • backup bathroom boiler boilers bosch cheap combi combi boiler fix gas install installation oil parts pump reliability spares system tee vaillant valve worcester
    • Replies: 11
    • Forum: Plumbing Jobs | The Job-board
  19. R

    commercial heating sysyem.

    dont normally do stuff on this scale. but today we installed 40 trv's in an office. came to fill up and we cannot get the heat through. initially it had an air lock and we ran it of through the drain offs which seemed to work for a while and then went cold again. checks were made for venting of...
    • REDSAW
    • Thread
    • backup boiler central heating system commercial cylinder expansion filling loop floor flow head hot hot water indirect inside installers leak manual pressure problem pump switch system temperature valve valves vessel water
    • Replies: 22
    • Forum: Plumbing Jobs | The Job-board
  20. J

    new boiler

    just a quick one kind of looked at a job on sat morn 16 rads at the moment extension going on with a further 5 rooms with en suites which means 5 extra rads will be no bigger than 600x500 the origional rads are between 600x700 through to 600x1000 no bigger done a few rough calculations on site...
    • jambo
    • Thread
    • backup boiler boilers central heating system cold combi eco electric gas hot hot water job maintain new boiler oil safe showers supply system unvented vaillant water worcester
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
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