Can someone explain what exactly is involved when it comes to Time Machine snapshots?

Can someone give me a brief and succint description and tutorial on how Time Machine snapshots work?
I use Time Machine (on Mac OS X obviously, ML 10.8.4) to backup my HD onto a separate external drive at least once a week.
However, like so many other users I'm online in a variety of places so most of the time (about 99%) my laptop isn't able to be connected to the external designated for HD backups and I've heard and read that the application Time Machine can use "snapshots" to create temporary backups to hold until you've connected your external the next time.
I wonder how that works?
How do I go about setting up this snapshot option so that my laptop can be regularly backing up my files without me having to be tethered to the external at the same time?
Won't that fill up my entire drive due to virtual memory or sleepimage or swapfiles or something along those lines?
And last but certainly not least, how can the user take use of this option but also prevent the TM snapshots from hogging every availabe byte of memory.

Read > http://pondini.org/TM/30.html
CS7981 wrote:
However, like so many other users I'm online in a variety of places so most of the time (about 99%) my laptop isn't able to be connected to the external designated for HD backups and I've heard and read that the application Time Machine can use "snapshots" to create temporary backups to hold until you've connected your external the next time.
I wonder how that works?
That's how it works.
CS7981 wrote:
How do I go about setting up this snapshot option so that my laptop can be regularly backing up my files without me having to be tethered to the external at the same time?
Local snapshots are made automatically in portable Macs with OS X Lion or Mountain Lion. Simply disconnect the Time Machine drive from your Mac and your Mac will start making local snapshots.
CS7981 wrote:
Won't that fill up my entire drive due to virtual memory or sleepimage or swapfiles or something along those lines?
These snapshots are stored in the hard drive and they consume a lot of space, as they are backing up the whole hard drive. A lot of users complain about the space they take, but in general, you don't have to worry. See below.
CS7981 wrote:
And last but certainly not least, how can the user take use of this option but also prevent the TM snapshots from hogging every availabe byte of memory.
Local snpashots will be deleted automatically when the hard drive is full, so don't worry about it. If you want to remove them, simply open System Preferences > Time Machine, and turn it off. Leave it for some minutes or hours, and turn on Time Machine again, but there's no reason to do that

Similar Messages

  • Can someone explain what exactly the 802.11.n enabler does?

    I have the 802.11.n installed on my MacBook Pro laptop, (i checked through the steps provided by this site). Does this mean it is already activated or do i need to do something to actually activate it?
    I am a computer 'newbie', so to speak, and don't know a whole lot about the ins & outs of what makes them work, etc., but want to learn as much as i can.
    Thanks!

    The 802.11n Enabler was for earlier MacBooks and maybe a couple other models.
    Originally, those models came enabled only for b/g. By purchasing the 802.11n enabler the Airport Card was updated to "n" speeds.
    I know, I had one of the first Core2 Duo models that came out with that configuration and had to buy the 802.11n enabler.
    This was the late 2006 MacBook model.
    A few months after that, all machines came with 802.11n and the updater was no longer needed.
    You probably don't need this but here is the specification on who does.
    http://store.apple.com/us/product/D4141ZM/A

  • I have downloaded ios 5.1.1 and the wifi has stop working or it would stay on for less then 20min its only 9 months old can someone explain what is happening and if some know how to fix it

    I have downloaded ios 5.1.1 and the wifi has stop working or it would stay on for less then 20min its only 9 months old can someone explain what is happening and if some know how to fix it

    I have taken it back to the Apple store genius bar, but they say they don't see anything wrong. Well unless you use it all day and experience the problems when they happen, you wont see anything wrong. But there are lots wrong with it. But this would be the same store as I purchased the phone. And they backed up my old Iphone 4, but were not able to get anything to load back onto my new phone. So, I lost pretty much everything. But over time, some of my contacts have started showing up, although i am still missing over 800 of them.

  • Can someone explain what Activity Monitor's 'Spindump' does?

    Can someone explain what Activity Monitor's 'Spindump' does?

    http://bit.ly/1b68kUF get me to:
    https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/ man8/spindump.8.html

  • What do I do when I get this Time Machine message?  The backup disk image "/Volumes/Mark McConnell's Time Capsu/Mark's MacBook Pro.sparsebundle" is already in use.

    What do I do when I get this Time Machine error message?
    "The backup disk image “/Volumes/Mark McConnell's Time Capsu/Mark’s MacBook Pro.sparsebundle” is already in use."

    Unplug your Time Capsule from power. Wait 10 seconds and then power it on again. When the light goes green try backing up again.

  • Can someone explain what DHCP is and how I do I connect to WiFi  hotspot?

    Can someone explain how a wireless network/router with an internet connection allows computers with a wireless card to connect to the internet? For instance, In an internet cafe with WiFi, how does my macbook get the IP address for the ISP that the cafe uses to allow me to open a webpage with Safari? What is DHCP and how should I set my internet preferences to allow me to use a network other than my own.
    The reason I ask so many questions is that I can connect to the internet with my Airport Express base station network at home but not in my local WiFi cafe. Can see the network but not connect.

    Most Internet Cafes utilize DHCP to dynamically provide a wireless client with an IP address for that session. DHCP is a protocol used by networked computers (clients) to obtain IP addresses and other parameters such as the default gateway, subnet mask, and IP addresses of DNS servers from a DHCP server. It facilitates access to a network because these settings would otherwise have to be made manually for the client to participate in the network.
    You Mac's AirPort, in turn, is set up to be a DHCP client by default. This allows your Mac to accept the dynamically provided IP address information from the Internet Cafe's DHCP server.
    The reason I ask so many questions is that I can connect to the internet with my Airport Express base station network at home but not in my local WiFi cafe.
    It sounds like the AirPort settings that your Mac is using is no longer at their default settings...and my be the reason you cannot connect to the Internet at the Cafe...or, the Cafe has additional settings required. I suggest that you check with the Administrator of the particular Internet Cafe you're having trouble connecting with to find out what settings are necessary to use their wireless network.
    A typical AirPort is set up as follows:
    System Preferences > Network > Show > Network Port Configurations
    - Verify that AirPort is "On" (checked)
    - Verify that AirPort is at the top of the list. If it isn't, you can drag it to the top.
    Systems Preferences > Network > Show > AirPort
    AirPort tab
    - By default, join: Automatic
    TCP/IP tab
    - Configure IPv4: Using DHCP
    - Configure IPv6: Automatically or Off
    Proxies tab
    - Configure Proxies: Manually
    - Select a proxy server to configure: <All proxies should be unchecked unless you specifically require a proxy for Internet access.>
    - Exclude simple hostnames (unchecked)
    - Bypass proxy settings for these Hosts & Domains: <leave blank>
    - Use Passive FTP Mode (PASV) (checked)

  • Updated to Yosemite recently, keep on getting efi and kernel panics. Can someone explain what this report means?

    This is the crash report I just got. I am just doing random work and this happens. I would really appreciate it if someone could explain what this means. I have fixed my computer with DiskWarrior 3 times but this just keeps happening. I also have bootcamp and it's doing absolutely fine.
    Anonymous UUID:       CF401590-1A3C-749E-F045-F2498CA51C2F
    Tue Nov 18 18:41:14 2014
    *** Panic Report ***
    panic(cpu 0 caller 0xffffff8025a1e80a): Kernel trap at 0xffffff8132a4b870, type 14=page fault, registers:
    CR0: 0x000000008001003b, CR2: 0xffffff8132a4b870, CR3: 0x00000001e40ab0d9, CR4: 0x00000000001626e0
    RAX: 0x0000000000000000, RBX: 0x0000000000000001, RCX: 0x000000002e4e5941, RDX: 0x0000000000000000
    RSP: 0xffffff8132a4b598, RBP: 0x0000000000000000, RSI: 0x00000000563af16d, RDI: 0x0000000000000000
    R8:  0xffffff8132a4b640, R9:  0x0000000000000000, R10: 0x0000000000000000, R11: 0x0000000000000200
    R12: 0x0000000025000000, R13: 0x0000000000000200, R14: 0xffffffef00000000, R15: 0x0000000000000011
    RFL: 0x0000000000010296, RIP: 0xffffff8132a4b870, CS:  0x0000000000000008, SS:  0x0000000000000010
    Fault CR2: 0xffffff8132a4b870, Error code: 0x0000000000000011, Fault CPU: 0x0 Kernel NX fault
    Backtrace (CPU 0), Frame : Return Address
    0xffffff8132a4b240 : 0xffffff802593a811
    0xffffff8132a4b2c0 : 0xffffff8025a1e80a
    0xffffff8132a4b480 : 0xffffff8025a3a443
    0xffffff8132a4b4a0 : 0xffffff8132a4b870
    BSD process name corresponding to current thread: savapi
    Mac OS version:
    14A389
    Kernel version:
    Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64
    Kernel UUID: 89E10306-BC78-3A3B-955C-7C4922577E61
    Kernel slide:     0x0000000025600000
    Kernel text base: 0xffffff8025800000
    __HIB  text base: 0xffffff8025700000
    System model name: MacBookPro9,2 (Mac-6F01561E16C75D06)
    System uptime in nanoseconds: 7026664466086
    last loaded kext at 1837127380720: com.avira.kext.FileAccessControl 1.0.0d1 (addr 0xffffff7fa814c000, size 49152)
    last unloaded kext at 383172730740: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7fa814c000, size 61440)
    loaded kexts:
    com.avira.kext.FileAccessControl 1.0.0d1
    com.apple.driver.AudioAUUC 1.70
    com.apple.filesystems.ntfs 3.12
    com.apple.driver.AGPM 100.14.37
    com.apple.driver.X86PlatformShim 1.0.0
    com.apple.filesystems.autofs 3.0
    com.apple.iokit.IOBluetoothSerialManager 4.3.0f10
    com.apple.driver.AppleOSXWatchdog 1
    com.apple.driver.AppleMikeyHIDDriver 124
    com.apple.driver.AppleHDA 266.5
    com.apple.driver.AppleMikeyDriver 266.5
    com.apple.iokit.IOUserEthernet 1.0.1
    com.apple.driver.AppleSMCLMU 2.0.4d1
    com.apple.driver.AppleThunderboltIP 2.0.2
    com.apple.driver.AppleUpstreamUserClient 3.6.1
    com.apple.driver.AppleBacklight 170.4.12
    com.apple.Dont_Steal_Mac_OS_X 7.0.0
    com.apple.driver.AppleHWAccess 1
    com.apple.driver.AppleHV 1
    com.apple.driver.AppleMCCSControl 1.2.10
    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.0f10
    com.apple.driver.AppleIntelHD4000Graphics 10.0.0
    com.apple.driver.AppleIntelFramebufferCapri 10.0.0
    com.apple.driver.AppleSMCPDRC 1.0.0
    com.apple.driver.AppleLPC 1.7.3
    com.apple.driver.SMCMotionSensor 3.0.4d1
    com.apple.driver.AppleUSBTCButtons 240.2
    com.apple.driver.AppleUSBTCKeyboard 240.2
    com.apple.driver.AppleIRController 327.5
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
    com.apple.BootCache 35
    com.apple.iokit.SCSITaskUserClient 3.7.0
    com.apple.driver.XsanFilter 404
    com.apple.iokit.IOAHCIBlockStorage 2.6.5
    com.apple.iokit.AppleBCM5701Ethernet 10.1.2b3
    com.apple.driver.AppleSDXC 1.6.5
    com.apple.driver.AppleFWOHCI 5.5.2
    com.apple.driver.AppleUSBHub 705.4.1
    com.apple.driver.AirPort.Brcm4360 900.19.8
    com.apple.driver.AppleUSBEHCI 705.4.14
    com.apple.driver.AppleAHCIPort 3.0.7
    com.apple.driver.AppleUSBXHCI 705.4.14
    com.apple.driver.AppleRTC 2.0
    com.apple.driver.AppleSmartBatteryManager 161.0.0
    com.apple.driver.AppleACPIButtons 3.1
    com.apple.driver.AppleHPET 1.8
    com.apple.driver.AppleSMBIOS 2.1
    com.apple.driver.AppleACPIEC 3.1
    com.apple.driver.AppleAPIC 1.7
    com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
    com.apple.nke.applicationfirewall 161
    com.apple.security.quarantine 3
    com.apple.security.TMSafetyNet 8
    com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
    com.apple.kext.triggers 1.0
    com.apple.iokit.IOSerialFamily 11
    com.apple.driver.DspFuncLib 266.5
    com.apple.kext.OSvKernDSPLib 1.15
    com.apple.iokit.IOAudioFamily 200.6
    com.apple.vecLib.kext 1.2.0
    com.apple.driver.AppleHDAController 266.5
    com.apple.iokit.IOHDAFamily 266.5
    com.apple.driver.AppleSMBusPCI 1.0.12d1
    com.apple.driver.X86PlatformPlugin 1.0.0
    com.apple.driver.AppleSMBusController 1.0.13d1
    com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.0f10
    com.apple.iokit.IOBluetoothFamily 4.3.0f10
    com.apple.iokit.IOUSBUserClient 705.4.0
    com.apple.iokit.IOFireWireIP 2.2.6
    com.apple.iokit.IOSurface 97
    com.apple.iokit.IOAcceleratorFamily2 156.4
    com.apple.AppleGraphicsDeviceControl 3.7.21
    com.apple.driver.AppleBacklightExpert 1.1.0
    com.apple.iokit.IONDRVSupport 2.4.1
    com.apple.iokit.IOGraphicsFamily 2.4.1
    com.apple.driver.IOPlatformPluginFamily 5.8.0d49
    com.apple.driver.AppleSMC 3.1.9
    com.apple.driver.AppleUSBMultitouch 245.2
    com.apple.iokit.IOUSBHIDDriver 705.4.0
    com.apple.driver.AppleUSBMergeNub 705.4.0
    com.apple.driver.AppleUSBComposite 705.4.9
    com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.0
    com.apple.iokit.IOBDStorageFamily 1.7
    com.apple.iokit.IODVDStorageFamily 1.7.1
    com.apple.iokit.IOCDStorageFamily 1.7.1
    com.apple.driver.AppleThunderboltDPInAdapter 4.0.6
    com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6
    com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2
    com.apple.iokit.IOAHCISerialATAPI 2.6.1
    com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.0
    com.apple.driver.AppleThunderboltNHI 3.1.7
    com.apple.iokit.IOThunderboltFamily 4.2.1
    com.apple.iokit.IOEthernetAVBController 1.0.3b3
    com.apple.iokit.IOFireWireFamily 4.5.6
    com.apple.iokit.IO80211Family 700.52
    com.apple.driver.mDNSOffloadUserClient 1.0.1b8
    com.apple.iokit.IONetworkingFamily 3.2
    com.apple.iokit.IOAHCIFamily 2.7.0
    com.apple.iokit.IOUSBFamily 705.4.14
    com.apple.driver.AppleEFINVRAM 2.0
    com.apple.driver.AppleEFIRuntime 2.0
    com.apple.iokit.IOHIDFamily 2.0.0
    com.apple.iokit.IOSMBusFamily 1.1
    com.apple.security.sandbox 300.0
    com.apple.kext.AppleMatch 1.0.0d1
    com.apple.driver.AppleKeyStore 2
    com.apple.driver.AppleMobileFileIntegrity 1.0.5
    com.apple.driver.AppleCredentialManager 1.0
    com.apple.driver.DiskImages 389.1
    com.apple.iokit.IOStorageFamily 2.0
    com.apple.iokit.IOReportFamily 31
    com.apple.driver.AppleFDEKeyStore 28.30
    com.apple.driver.AppleACPIPlatform 3.1
    com.apple.iokit.IOPCIFamily 2.9
    com.apple.iokit.IOACPIFamily 1.4
    com.apple.kec.Libm 1
    com.apple.kec.pthread 1
    com.apple.kec.corecrypto 1.0
    Model: MacBookPro9,2, BootROM MBP91.00D3.B08, 2 processors, Intel Core i7, 2.9 GHz, 8 GB, SMC 2.2f41
    Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In
    Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54333531533643465238432D50422020
    Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54333531533643465238432D50422020
    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xF5), Broadcom BCM43xx 1.0 (7.15.124.12.8)
    Bluetooth: Version 4.3.0f10 14890, 3 services, 19 devices, 1 incoming serial ports
    Serial ATA Device: APPLE HDD TOSHIBA MK7559GSXF, 750.16 GB
    Serial ATA Device: HL-DT-ST DVDRW  GS31N
    USB Device: USB Receiver
    USB Device: Hub
    USB Device: FaceTime HD Camera (Built-in)
    USB Device: Hub
    USB Device: Hub
    USB Device: BRCM20702 Hub
    USB Device: Bluetooth USB Host Controller
    USB Device: IR Receiver
    USB Device: Apple Internal Keyboard / Trackpad
    Thunderbolt Bus: MacBook Pro, Apple Inc., 25.1

    You have the MacBookPro6,2—the Edsel of Macs. It may have the logic-board defect that was covered by a recall program that has now ended.
    Residents of the EU may be entitled to warranty service for up to six years after purchase.
    Make a "Genius" appointment at an Apple Store, or go to another authorized service provider, to have the machine tested. The routine hardware diagnostics used by service providers do not detect the fault. There is a specific test for this issue that Apple calls "VST" (for "Video Switching Test.") Ask for it. A "Failed" result means that the fault is present.
    You may be quoted a price of about $300 (in the U.S.) for a "depot repair," which involves shipping the unit to a central repair facility and takes about two weeks. For that flat fee, anything found wrong with it should be fixed, not just the logic board.
    Sometimes the replacement part is also defective, so be prepared for that possibility. If you decide to pay for a new logic board, test thoroughly during the 90-day warranty period on the repair. Some owners have reported that they went through as many as three replacement boards before getting one that worked.
    If you don't want to pay for the repair, you may (or may not) be able to work around the problem by disabling automatic graphics switching. To use the discrete graphics processor, you'll need a third-party utility to switch to it manually.
    Often the problems start after an OS upgrade. If the upgrade was recent, and you have backups, then you can revert to a previous OS X version.

  • Hi can someone explain what the following error code mean and how i can recifty to download a copy of ebook purchase Error getting License. License Server Communication Problem: E_ACT_NOT_READY

    Hi can any one help
    I keep getting the following error code when I try and down a ebook which I have purchase
    Error getting License. License Server Communication Problem:
    E_ACT_NOT_READY
    can someone advise me what this means and how I recifty the problem to enable me to read the ebook purchase?
    Thanks

    I am having this exact issue. I just downloaded a book and went to open it and got this exact problem.
    I purchased he book through indigo/kobo edition and paid for it and immediately went to open it and am getting the same error
    Error getting License. License Server Communication Problem only mine says  Bad Device key after.
    Not sure why someone has not answered this question yet...i am using windows 7 and this is how i always do it. Never had this problem before when purchasing a book.
    i hope someone answers this soon.

  • Streaming, can someone explain what I am doing wrong?

    I have two ATVs both synced to one computer. I have a large music library on a second computer but can't find how to stream to one of the ATVs.
    I followed the instructions in the booklet, opened iTunes on the relevant computer, chose sources on the ATV, "Connect to New iTunes" and noted the passcode, selected the ATV icon and "Click to set up", entered the passcode and the ATV icon disappeared. "My Library" shows in the sources but the ATV icon only re-appears on the computer if I switch to "Connect to New iTunes". If I then click on the icon the ATV page opens up with details of the ATV and a message saying that the ATV icon will only appear when "My Library" is selected on the ATV, but as soon as I do that the ATV icon disappears. The help file says in System Preferences sharing pane make sure "iTunes Music Sharing" is on! There is no "iTunes Music Sharing"!!
    Please, can someone take this idiot through the process step by step, including how you start streaming once you have successfully made the connection?

    Glad to see everything is starting to work out.
    You might consider two user accounts (that's logins) with a music library in each. It's a little more work to operate, but probably less than having two libraries in one user account and providing both users are logged in and have itunes running you should get both libraries available to you at the same time on the tv (obviously you would need to switch between them on the tv).
    Otherwise I'd consolidate them by opening itunes (with library 1) and then dragging and dropping the music files from the music folder of library 2 onto itunes, I'd start by doing a few tunes to satisfy yourself that all is OK, you can probably do them in large chunks but I'd probably not drag them all at once, if something did go wrong you probably wouldn't lose any files but it might be difficult to figure out what files had been added and which hadn't before the problem occurred.

  • Can you explain what exactly cdc mean in data services......?

    Hello!
    I would like to know  what exactly change data capture (cdc) mean in data services......?

    Hi sudheer kore
    CDC is basically a technical term - Change data capture. We use a few approaches to work capture changed data during ETL process. This can be called incremental approach/ delta loading of data.
    Source Based CDC
    -Using a timestamp, date, datetime, or int column to uniquely identify the next "band" of rows to be loaded into the delta process in combination with a status table, global variable, and where clauses of the query transform. This is demonstrated in the Tutorial file provided with Data Services in the CDC chapter.
    -Using the Database native CDC functionality, available in Oracle, SQL Server and I believe Attunity
    Changes are replicated to change tables in the source, marked as insert/update/delete. Data Services can natively read these tables through the use of CDC Datastore objects and Map_CDC_Operation transform.
    Target Based CDC
    -Must be used if the methods above are not available. The Table_Comparison transform is capable of comparing all source records to the target table to determine if an INSERT or UPDATE is required for that row.
    Few links that would explain this better
    Source Versus Target Based Change Data Capture
    Map_CDC_Operation in Data Services
    http://sapsimplified.com/sap-bods/map-cdc-operation-transformation/
    Regards
    Anil Kumar Mehar G

  • Can someone explain what the application "iDvd" does or work?

    I want to learn to use the application called iDvd but not exactly sure what exactly is it used for? Can it be used to decorate dvds with special design stickers like the covers on dvd movies?

    Hi.
    iDVD allows you to create a Hollywood-style DVD that can contain personal and home videos and slideshows. The DVD can be played in any DVD player and can include motion menus and music, just as the DVDs released by the major labels.
    Take a look at this...  Apple Support - iDVD
    Helpful?

  • Can someone explain what Automater is to me, in simple terms?

    Hi, anyone out there wanna explain what Automater is for what it does etc.
    Thanks in advance
    Tracy

    Hi Tracy
    Launch Automator and select "Help Viewer Help?" from the Help Menu. One of the things you'll see listed there is:
    *+Discover Automator+*
    +Create time-saving automations without programming a single line of code.+
    I'm currently on a mac running 10.4 but I can't see it being that different for 10.5? If you click on the link you get this explanation:
    +Automator is an innovative personal automation assistant that makes it easy to automate repetitive tasks. Automator lets you skip the complex programming and scripting that is normally required to create automations. Individual steps called actions can be assembled into a complete task by dragging actions into an Automator workflow. You can run your completed workflows repeatedly, and even share them with others.+
    If you scroll down that help page there are more explanations and examples. Is that simple enough for you?
    Tony

  • Can someone explain what "gfx-surface-win32" is in about:memory?

    I have an extension that causes "gfx-surface-win32" in about:memory to use excessive amounts of memory. I have tried to contact the developer of the extension without any success. I was going to try and see if I could fix it but I can figure out what "gfx-surface-win32" is. Can some please explain what this is?

    It's a graphics memory usage. The only solution I see is to [[How do I upgrade my graphics drivers?|update your graphics drivers]] because it's not recommended to change an extension you are not going to maintain.
    Note that in Firefox 15 (released on August 28), leaky extensions won't leak in Firefox. See [http://blog.kylehuey.com/post/21892343371/fixing-the-memory-leak Kyle Huey's blog post].

  • Bluetooth: can someone explain what you can do with it?

    On the iPhone, is bluetooth only for pairing with a BT headset? no data transferring/receiving whatsoever with a powerbook? if so, has Apple gone mad?
    thanks

    It is easier to explain what it cannot do.
    • it does not support OBEX file exchanges
    • it does not support DUN connections via Bluetooth to connect your computer through it to the internet
    • it does not synchronize contact, events or media files
    Support for synchronization and file transfer it available only via USB through iTunes 7.3 or later.

  • HT3275 What do i do when, having reconnected my Time-Machine Backup disk, i'm told that there is not sufficient space to do a backup ? it seems somehow that my previous backup was "closed" and i cannot continue using it, so Time machine appears to start a

    I use an external 500 GB WD hard drive for my Time-Machine backup.
    Sometimes - several times - after i've disconnected the drive to go travelling, when i reconnect the external drive, Time Machine tries to resume but tells me there is not enough space on the drive, and to chose a bigger disk.
    It is as if the previous backup file is "closed' and cannot be written to again.
    The only fix i can find is to erase, start again from scratch and do a full backup from scratch - which totally defeats the purpose of Time Machine.
    I've tried repairing the disk, nothing appears to allow the previous backup to be continued.
    Suggestions please ??
    Jean-Noel Cozon

    Hi Linc,
    Thanks for getting back - if i understood correctly, the info you suggested i collect is hereunder ...
    Jan 22 06:08:09 MBP-15 com.apple.backupd[4353]: Starting standard backup
    Jan 22 06:08:10 MBP-15 com.apple.backupd[4353]: Backing up to: /Volumes/Time-Machine MBP15 Backup/Backups.backupdb
    Jan 22 06:10:54 MBP-15 com.apple.backupd[4353]: No pre-backup thinning needed: 3.12 GB requested (including padding), 234.07 GB available
    Jan 22 06:18:20 MBP-15 com.apple.backupd[4353]: Copied 28083 files (2.2 GB) from volume MBP-15.
    Jan 22 06:21:57 MBP-15 com.apple.backupd[4353]: No pre-backup thinning needed: 3.13 GB requested (including padding), 231.88 GB available
    Jan 22 06:29:10 MBP-15 com.apple.backupd[4353]: Copied 23509 files (2.2 GB) from volume MBP-15.
    Jan 22 06:32:01 MBP-15 com.apple.backupd[4353]: Starting post-backup thinning
    Jan 22 06:32:01 MBP-15 com.apple.backupd[4353]: No post-back up thinning needed: no expired backups exist
    Jan 22 06:32:02 MBP-15 com.apple.backupd[4353]: Backup completed successfully.
    Jan 22 07:08:09 MBP-15 com.apple.backupd[4474]: Starting standard backup
    Jan 22 07:08:10 MBP-15 com.apple.backupd[4474]: Backing up to: /Volumes/Time-Machine MBP15 Backup/Backups.backupdb
    Jan 22 07:10:52 MBP-15 com.apple.backupd[4474]: No pre-backup thinning needed: 3.13 GB requested (including padding), 231.88 GB available
    Jan 22 07:18:26 MBP-15 com.apple.backupd[4474]: Copied 28091 files (2.2 GB) from volume MBP-15.
    Jan 22 07:22:02 MBP-15 com.apple.backupd[4474]: No pre-backup thinning needed: 3.13 GB requested (including padding), 229.69 GB available
    Jan 22 07:29:22 MBP-15 com.apple.backupd[4474]: Copied 23517 files (2.2 GB) from volume MBP-15.
    Jan 22 07:32:14 MBP-15 com.apple.backupd[4474]: Starting post-backup thinning
    Jan 22 07:32:14 MBP-15 com.apple.backupd[4474]: No post-back up thinning needed: no expired backups exist
    Jan 22 07:32:15 MBP-15 com.apple.backupd[4474]: Backup completed successfully.
    Jan 22 08:08:10 MBP-15 com.apple.backupd[4595]: Starting standard backup
    Jan 22 08:08:10 MBP-15 com.apple.backupd[4595]: Backing up to: /Volumes/Time-Machine MBP15 Backup/Backups.backupdb
    Jan 22 08:10:56 MBP-15 com.apple.backupd[4595]: No pre-backup thinning needed: 3.13 GB requested (including padding), 229.68 GB available
    Jan 22 08:18:19 MBP-15 com.apple.backupd[4595]: Copied 28099 files (2.2 GB) from volume MBP-15.
    Jan 22 08:21:50 MBP-15 com.apple.backupd[4595]: No pre-backup thinning needed: 3.14 GB requested (including padding), 227.49 GB available
    Jan 22 08:29:18 MBP-15 com.apple.backupd[4595]: Copied 23525 files (2.2 GB) from volume MBP-15.
    Jan 22 08:32:09 MBP-15 com.apple.backupd[4595]: Starting post-backup thinning
    Jan 22 08:32:09 MBP-15 com.apple.backupd[4595]: No post-back up thinning needed: no expired backups exist
    Jan 22 08:32:10 MBP-15 com.apple.backupd[4595]: Backup completed successfully.
    Jan 22 09:08:09 MBP-15 com.apple.backupd[4716]: Starting standard backup
    Jan 22 09:08:10 MBP-15 com.apple.backupd[4716]: Backing up to: /Volumes/Time-Machine MBP15 Backup/Backups.backupdb
    Jan 22 09:10:55 MBP-15 com.apple.backupd[4716]: No pre-backup thinning needed: 3.13 GB requested (including padding), 227.49 GB available
    Jan 22 09:18:48 MBP-15 com.apple.backupd[4716]: Copied 28107 files (2.2 GB) from volume MBP-15.
    Jan 22 09:22:40 MBP-15 com.apple.backupd[4716]: No pre-backup thinning needed: 3.27 GB requested (including padding), 225.30 GB available
    Jan 22 09:32:35 MBP-15 com.apple.backupd[4716]: Copied 23533 files (2.3 GB) from volume MBP-15.
    Jan 22 09:35:25 MBP-15 com.apple.backupd[4716]: Starting post-backup thinning
    Jan 22 09:35:25 MBP-15 com.apple.backupd[4716]: No post-back up thinning needed: no expired backups exist
    Jan 22 09:35:26 MBP-15 com.apple.backupd[4716]: Backup completed successfully.
    Jan 22 10:08:09 MBP-15 com.apple.backupd[4840]: Starting standard backup
    Jan 22 10:08:10 MBP-15 com.apple.backupd[4840]: Backing up to: /Volumes/Time-Machine MBP15 Backup/Backups.backupdb
    Jan 22 10:10:51 MBP-15 com.apple.backupd[4840]: No pre-backup thinning needed: 3.14 GB requested (including padding), 225.18 GB available
    Jan 22 10:18:12 MBP-15 com.apple.backupd[4840]: Copied 28115 files (2.2 GB) from volume MBP-15.
    Jan 22 10:21:49 MBP-15 com.apple.backupd[4840]: No pre-backup thinning needed: 3.14 GB requested (including padding), 222.99 GB available
    Jan 22 10:29:05 MBP-15 com.apple.backupd[4840]: Copied 23541 files (2.2 GB) from volume MBP-15.
    Jan 22 10:32:00 MBP-15 com.apple.backupd[4840]: Starting post-backup thinning
    Jan 22 10:32:00 MBP-15 com.apple.backupd[4840]: No post-back up thinning needed: no expired backups exist
    Jan 22 10:32:01 MBP-15 com.apple.backupd[4840]: Backup completed successfully.
    Jan 22 11:08:09 MBP-15 com.apple.backupd[4963]: Starting standard backup
    Jan 22 11:08:10 MBP-15 com.apple.backupd[4963]: Backing up to: /Volumes/Time-Machine MBP15 Backup/Backups.backupdb
    Jan 22 11:10:53 MBP-15 com.apple.backupd[4963]: No pre-backup thinning needed: 3.14 GB requested (including padding), 222.82 GB available
    Jan 22 11:18:10 MBP-15 com.apple.backupd[4963]: Copied 28123 files (2.2 GB) from volume MBP-15.
    Jan 22 11:21:46 MBP-15 com.apple.backupd[4963]: No pre-backup thinning needed: 3.14 GB requested (including padding), 220.63 GB available
    Jan 22 11:30:13 MBP-15 com.apple.backupd[4963]: Copied 23553 files (2.2 GB) from volume MBP-15.
    Jan 22 11:33:03 MBP-15 com.apple.backupd[4963]: Starting post-backup thinning
    Jan 22 11:33:03 MBP-15 com.apple.backupd[4963]: No post-back up thinning needed: no expired backups exist
    Jan 22 11:33:04 MBP-15 com.apple.backupd[4963]: Backup completed successfully.
    Currently, having once again yesterday flattened and restarted my T-M from scratch i probably overwrote all the backups since the last time i had to do that - and as long as i don't disconnect my external backup drive it seems OK now.
    I'm a bit paranoid as i use my MBP both as my Mac, but also as my Virtual PC so i have a lot of technical and commercial data which i need to keep properly backed up.
    Is it possible when i've ejected my TM backup disck, gone travelling, and then reconnected it some days later - that i am causing a new backup to start by hitting the 'Backup Now' command on the menu bar.... should i let TM pickup by itself automaticvally without porvoking a Backup Now command ?
    Thanks in advance for any futher advice

Maybe you are looking for