VMware Fusion's "Split into 2 GB files" and Time Machine

Hi everyone,
does anybody know for sure it Fusion's option to split VMs into 2 GB files make for a more efficient TM backup?
I know that normally the VM image is seen as 1 large file by TM and therefore gets backuped again if you just had the VM open without doing anything.
Is splitting the VM image into 2 GB chunks avoiding this so that (ideally, without doing much in the VM) I end up with just one or two 2 GB files being backuped? Or will all of the 2 GB files be backuped every single time I ran the VM?
Thanks
Björn

Splitting to 2GB sounds like a workaround for people who want to store their virtual machines on a FAT filesystem (so that it can be easily shared between a Mac and Windows machine). The FAT filesystem cannot store files larger than 4GB, and it's usually safer to limit to 2GB.
Time machine looks for files that have changed, and backs them up if they have changed. For a 32GB virtual machine, you'll have sixteen 2GB files. Probably at least two or three of them will change every time you use the VM, even if you hardly do anything. So this solution will sort of work, but you'll still be eating up space pretty fast on your Time Machine volume.
I store all of my virtual machines on a sparsebundle disk image. This is a mounted filesystem that seamlessly breaks up the filesystem into many 8MB files. That level of granularity keeps my TM backups small. For example, I have three individual VMs stored on a single sparsebundle volume. They currently occupy 3012 individual 8MB "bundle" files. The last time I used those VMs, I ran software updates on all of them. A total of 118 of those 8MB files changed as a result of the updates, so the TM backup was 944MB. If they were not on a sparsebundle volume, the TM backup would have been about 24GB.
I use Parallels, but the same concept should apply to any application that creates and frequently updates very large files. Use Disk Utility to create the sparsebundle volume.

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    6/11/14 3:18:01.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:18:14.000 PM kernel[0]: disk1s2: I/O error.
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    6/11/14 3:19:06.000 PM kernel[0]: disk1s2: I/O error.
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    6/11/14 3:26:01.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:26:13.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:26:13.942 PM com.apple.backupd[532]: Error: (-36) SrcErr:YES Copying /Volumes/Media/itunes Media/Mobile Applications/Calculator 3.4.ipa to (null)
    6/11/14 3:26:26.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:26:26.509 PM com.apple.backupd[532]: Error: (-36) SrcErr:YES Copying /Volumes/Media/itunes Media/Mobile Applications/Camera Zoom 3.1.ipa to (null)
    6/11/14 3:26:39.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:26:52.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:26:52.108 PM com.apple.backupd[532]: Error: (-36) SrcErr:YES Copying /Volumes/Media/itunes Media/Mobile Applications/Cards 2.0.1.ipa to (null)
    6/11/14 3:27:14.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:27:17.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:27:29.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:27:29.606 PM com.apple.backupd[532]: Error: (-36) SrcErr:YES Copying /Volumes/Media/itunes Media/Mobile Applications/Casino 2.5.ipa to (null)
    6/11/14 3:27:47.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:28:00.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:28:00.327 PM com.apple.backupd[532]: Error: (-36) SrcErr:YES Copying /Volumes/Media/itunes Media/Mobile Applications/Clear Day 2.6.ipa to (null)
    6/11/14 3:28:14.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:28:26.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:28:39.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:28:56.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:29:09.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:29:21.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:29:34.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:29:47.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:29:59.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:30:12.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:30:24.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:30:37.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:30:49.085 PM xpcproxy[629]: assertion failed: 13D65: xpcproxy + 3438 [D559FC96-E6B1-363A-B850-C7AC9734F210]: 0x2
    6/11/14 3:30:49.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:30:50.194 PM syncdefaultsd[628]: Fixing push token
    6/11/14 3:30:52.507 PM xpcproxy[632]: assertion failed: 13D65: xpcproxy + 3438 [D559FC96-E6B1-363A-B850-C7AC9734F210]: 0x2
    6/11/14 3:31:02.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:31:14.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:31:27.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:31:39.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:31:52.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:32:05.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:32:17.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:32:30.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:32:42.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:32:55.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:33:07.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:33:30.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:33:32.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:33:55.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:33:58.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:34:21.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:34:23.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:34:46.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:34:49.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:35:02.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:35:18.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:35:30.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:35:30.676 PM com.apple.backupd[532]: Error: (-36) SrcErr:YES Copying /Volumes/Media/itunes Media/Mobile Applications/Collection HD 1.7.ipa to (null)
    6/11/14 3:36:14.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:36:17.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:36:29.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:36:29.651 PM com.apple.backupd[532]: Error: (-36) SrcErr:YES Copying /Volumes/Media/itunes Media/Mobile Applications/eCardExpress 2.1.ipa to (null)
    6/11/14 3:36:52.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:37:14.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:37:17.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:37:30.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:37:52.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:37:55.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:38:07.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:38:30.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:38:32.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:38:45.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:39:08.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:39:10.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:39:23.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:39:46.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:39:48.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:40:01.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:40:23.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:40:26.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:40:38.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:41:01.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:41:04.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:41:16.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:41:39.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:41:41.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:41:54.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:42:17.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:42:19.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:42:32.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:42:54.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:42:57.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:43:09.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:43:32.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:43:34.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:43:47.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:44:10.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:44:12.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:44:25.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:44:48.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:44:50.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:45:03.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:45:25.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:45:28.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:45:40.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:45:55.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:46:07.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:46:20.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:46:32.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:46:45.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:46:58.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:47:10.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:47:23.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:47:35.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:47:48.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:48:00.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:48:13.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:48:26.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:48:38.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:48:51.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:49:03.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:49:16.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:49:21.393 PM WindowServer[128]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x04280300 device: 0x7f8ef9d04e00  isBackBuffered: 1 numComp: 3 numDisp: 3
    6/11/14 3:49:21.731 PM launchservicesd[52]: Application App:"System Preferences" asn:0x0-44044 pid:509 refs=7 @ 0x7fb5b9443730 tried to be brought forward, but isn't in fPermittedFrontApps ( ( "LSApplication:0x0-0x45045 pid=513 "com.apple.prefs.backup.remoteservice"")), so denying. : LASSession.cp #1481 SetFrontApplication() q=LSSession 100019/0x186b3 queue
    6/11/14 3:49:21.731 PM WindowServer[128]: [cps/setfront] Failed setting the front application to System Preferences, psn 0x0-0x44044, securitySessionID=0x186b3, err=-13066
    6/11/14 3:49:21.733 PM WindowServer[128]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x7f8ef9e94e00(2001)
    6/11/14 3:49:21.795 PM WindowServer[128]: device_generate_lock_screen_screenshot: authw 0x0(0), shield 0x7f8ef9e94e00(2001)
    6/11/14 3:49:29.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:50:48.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:50:48.546 PM com.apple.backupd[532]: Error: (-36) SrcErr:YES Copying /Volumes/Media/itunes Media/Mobile Applications/GarageBand 1.1.ipa to (null)
    6/11/14 3:51:01.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:51:13.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:51:26.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:51:38.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:51:51.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:52:03.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:52:16.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:52:29.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:52:41.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:52:55.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:53:07.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:53:07.747 PM com.apple.backupd[532]: Error: (-36) SrcErr:YES Copying /Volumes/Media/itunes Media/Mobile Applications/Glympse 2.22.444.ipa to (null)
    6/11/14 3:53:20.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:53:32.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:53:32.869 PM com.apple.backupd[532]: Stopping backup.
    6/11/14 3:53:32.869 PM com.apple.backupd[532]: Error: (-36) SrcErr:YES Copying /Volumes/Media/itunes Media/Mobile Applications/Golf Channel 3.7.2.ipa to (null)
    6/11/14 3:53:33.357 PM com.apple.backupd[532]: Copied 127 items (2.24 GB) from volume Media. Linked 0.
    6/11/14 3:53:33.376 PM com.apple.backupd[532]: Copy stage failed with error:11
    6/11/14 3:53:34.607 PM com.apple.backupd[532]: Backup failed with error 11: 11
    6/11/14 3:55:53.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:56:05.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:56:18.000 PM kernel[0]: disk1s2: I/O error.
    6/11/14 3:56:33.000 PM kernel[0]: disk1s2: I/O error.

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