Brand new molassas - log jam

MIddle School
600 users
Average 60-90 logon per period
3 home folder locations Faculty, 6+8, 7th grade
2x3ghz Quad Core Xserve - totally upgraded
16GB RAM on server
GIG network
I had some issues with our database so Apple suggested I start over. Did that last fall, totally rebuilt the server. Since then it has been working wonderfully. Over 400 kids a day logon to home folders, everything has been great. Average 60 per period.
Last Monday, 2 8th grade classes came in an logged on within 5-10 minutes of each other. It was awful. Took about 15-20 minutes to get everyone to connect. If a student launched MS Word, that took another 5 minutes. You could visibly see the server straining to accomodate all the users. We checked activity monitor and saw nothing that looked horrendous. This is new, we have been functioning for months without anything as serious as this. We constantly have 6th grade classes, 2 at a time, log on within minutes of each other.
So, I thought maybe there was an issue with the 8th grade home folders. NOT, had the same problem today when 2 7th grade classes came in, their home folders are on a different drive. Interesting, if one class (30 students) come in they can log on without issues. If another class comes in 5-10 minutes later, it seems that they have no issues. I had 6th and 7th grade classes in today, logging in staggered and it worked ok. It has something to do with the server just shutting down when too many people make requests in a short period of time. As I said earlier, this is new, we have not had this issue. Trying to think of something we did to provoke this, but can't come up with anything.
I started to the install CD, repaired each bay using Disk Utility, no errors, ran permissions, a couple of times. Checked the activity monitor, upgraded the RAM from 8 to 16 GB.
So I am lost. We doubled the RAM and will see if that makes a difference, but I don't think it will as we didn't have this problem a month ago with 8 gb of RAM. This is a GIG network, we swapped server CAT6 cables, I am lost.
Any help would be greatly appreciated. Something is obviously corrupted or set wrong, as this server has worked fine.
Thanks in advance.
Jeff

foilpan wrote:
i'm assuming these are all network homes, correct?
Yes, all our users have network homes, located on 1 of 3 different drives.
and if so, do you redirect some folders locally on login?
No, not aware of this. Have tried to redirect cache but it never works, when tried it makes other applications unable to save or have other issues.
check the link here if you haven't yet: http://discussions.apple.com/thread.jspa?threadID=2740715
checking/repairing permissions won't do anything to resolve your problem (or most problems, for that matter).
what does network throughput look like on the server when a problem group logs in?
On last check it spikes on initial login but then seems to settle.
you say these classes have homedirs stored on separate drives. are they actually physically separate drives or just partitions of an existing drive or volume? are these homedirs stored on JBOD or RAID disks?
We have 2 xserves. Each one has three bays. The student directories are on two bays on our main server. 6th and 8th grade on one bay (1 Terabyte) and 7th grade on a separate 1 Terabyte bay. They are not RAID not JBOD. (Not sure about the JBOD) They are just standard drive bays inserted into the Xserve.

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USB Device: Microsoft® Nano Transceiver v2.0, 0x045e (Microsoft Corporation), 0x0745, 0x1a121000 / 6
USB Device: Apple Keyboard, apple_vendor_id, 0x024f, 0x1a122000 / 5
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8510, 0x1a110000 / 3
USB Device: hub_device, 0x8087 (Intel Corporation), 0x0024, 0x1d100000 / 2
USB Device: hub_device, 0x0424 (SMSC), 0x2512, 0x1d180000 / 3
USB Device: BRCM20702 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x1d181000 / 5
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821f, 0x1d181300 / 7
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0249, 0x1d182000 / 4

Here is another log. Directly referencing AirPort.
Mon Jan 21 12:57:14 2013
panic(cpu 0 caller 0xffffff8022ab7e75): Kernel trap at 0xffffff7fa3fe8412, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0xffffffffe4316dbf, CR3: 0x000000002449d000, CR4: 0x00000000001606e0
RAX: 0x0000000000000046, RBX: 0xffffff80376fd000, RCX: 0x0000000000000040, RDX: 0xffffff8035b4db80
RSP: 0xffffff8111e93e60, RBP: 0xffffff8111e93e80, RSI: 0x000000000000145e, RDI: 0xffffff8036391600
R8: 0xffffff802307ded0, R9: 0xffffff80341bd6e8, R10: 0xffffff80230bdc20, R11: 0xffffff802307de88
R12: 0x0000000035b2f641, R13: 0xffffff8035b46d80, R14: 0x0000000000000008, R15: 0xffffff8036044000
RFL: 0x0000000000010206, RIP: 0xffffff7fa3fe8412, CS: 0x0000000000000008, SS: 0x0000000000000000
Fault CR2: 0xffffffffe4316dbf, Error code: 0x0000000000000002, Fault CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff8111e93b00 : 0xffffff8022a1d626
0xffffff8111e93b70 : 0xffffff8022ab7e75
0xffffff8111e93d40 : 0xffffff8022acd3bd
0xffffff8111e93d60 : 0xffffff7fa3fe8412
0xffffff8111e93e80 : 0xffffff7fa4000635
0xffffff8111e93f00 : 0xffffff7fa3fea780
0xffffff8111e93f20 : 0xffffff8022e4928a
0xffffff8111e93f60 : 0xffffff8022a3dcde
0xffffff8111e93fb0 : 0xffffff8022ab2957
      Kernel Extensions in backtrace:
         com.apple.driver.AirPort.Brcm4331(612.20.15)[6AE73EF5-05CC-3FC4-8D4F-1506DFE72D 0B]@0xffffff7fa3fba000->0xffffff7fa41b2fff
            dependency: com.apple.iokit.IOPCIFamily(2.7.3)[7EECA562-F708-37FF-9757-CA9C98939903]@0xffff ff7fa3044000
            dependency: com.apple.iokit.IO80211Family(510.4)[3846178D-C705-39A8-8685-480C05F7BBE0]@0xff ffff7fa3f54000
            dependency: com.apple.iokit.IONetworkingFamily(3.0)[FE3163C6-2874-3843-A96F-5DB796ED27CA]@0 xffffff7fa3f29000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
12C3103
Kernel version:
Darwin Kernel Version 12.2.1: Thu Oct 18 12:13:47 PDT 2012; root:xnu-2050.20.9~1/RELEASE_X86_64
Kernel UUID: XXXXXXXXXXXXX
Kernel slide:     0x0000000022800000
Kernel text base: 0xffffff8022a00000
System model name: MacBookAir5,1 (Mac-XXXXXXXXXXXXX)
System uptime in nanoseconds: 12893828679492
last loaded kext at 480561254058: com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.5 (addr 0xffffff7fa44a6000, size 106496)
last unloaded kext at 766593838911: com.apple.filesystems.msdosfs          1.8 (addr 0xffffff7fa3ec7000, size 57344)
loaded kexts:
com.apple.iokit.SCSITaskUserClient          3.5.5
com.apple.filesystems.smbfs          1.8
com.apple.driver.AudioAUUC          1.60
com.apple.filesystems.autofs          3.0
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.driver.AGPM          100.12.81
com.apple.driver.ApplePlatformEnabler          2.0.6d1
com.apple.driver.X86PlatformShim          1.0.0
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AppleUpstreamUserClient          3.5.10
com.apple.iokit.IOBluetoothSerialManager          4.1.2f9
com.apple.driver.AppleMikeyDriver          2.3.5fc12
com.apple.driver.AppleHDA          2.3.5fc12
com.apple.driver.AppleBacklight          170.2.5
com.apple.driver.AppleIntelHD4000Graphics          8.0.6
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AppleSMCPDRC          1.0.0
com.apple.driver.AirPort.Brcm4331          612.20.15
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.1.2f9
com.apple.driver.AppleLPC          1.6.0
com.apple.driver.AppleSMCLMU          2.0.3d0
com.apple.driver.AppleMCCSControl          1.1.11
com.apple.driver.AppleIntelFramebufferCapri          8.0.6
com.apple.driver.ApplePolicyControl          3.2.13
com.apple.driver.AppleUSBTCButtons          237.1
com.apple.driver.AppleUSBTCKeyboard          237.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          34
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.3.1
com.apple.driver.AppleUSBHub          5.5.0
com.apple.driver.AppleUSBEHCI          5.5.0
com.apple.driver.AppleAHCIPort          2.5.1
com.apple.driver.AppleUSBXHCI          1.5.1
com.apple.driver.AppleEFINVRAM          1.7
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleSmartBatteryManager          161.0.0
com.apple.driver.AppleACPIButtons          1.7
com.apple.driver.AppleHPET          1.8
com.apple.driver.AppleSMBIOS          1.9
com.apple.driver.AppleACPIEC          1.7
com.apple.driver.AppleAPIC          1.6
com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0
com.apple.nke.applicationfirewall          4.0.39
com.apple.security.quarantine          2
com.apple.driver.AppleIntelCPUPowerManagement          196.0.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.5
com.apple.iokit.IOBDStorageFamily          1.7
com.apple.iokit.IODVDStorageFamily          1.7.1
com.apple.iokit.IOCDStorageFamily          1.7.1
com.apple.kext.triggers          1.0
com.apple.iokit.IOSurface          86.0.3
com.apple.iokit.IOSerialFamily          10.0.6
com.apple.driver.DspFuncLib          2.3.5fc12
com.apple.iokit.IOAudioFamily          1.8.9fc11
com.apple.kext.OSvKernDSPLib          1.6
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.iokit.IOBluetoothFamily          4.1.2f9
com.apple.iokit.IO80211Family          510.4
com.apple.iokit.IONetworkingFamily          3.0
com.apple.driver.AppleSMBusPCI          1.0.11d0
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.1.2f9
com.apple.driver.X86PlatformPlugin          1.0.0
com.apple.driver.IOPlatformPluginFamily          5.3.0d47
com.apple.driver.AppleHDAController          2.3.5fc12
com.apple.iokit.IOHDAFamily          2.3.5fc12
com.apple.driver.AppleSMC          3.1.4d2
com.apple.driver.AppleSMBusController          1.0.11d0
com.apple.driver.AppleGraphicsControl          3.2.13
com.apple.iokit.IONDRVSupport          2.3.6
com.apple.iokit.IOGraphicsFamily          2.3.6
com.apple.driver.AppleUSBHIDKeyboard          170.2
com.apple.driver.AppleHIDKeyboard          170.2
com.apple.iokit.IOSCSIBlockCommandsDevice          3.5.5
com.apple.iokit.IOUSBMassStorageClass          3.5.1
com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.5
com.apple.driver.AppleUSBMultitouch          237.3
com.apple.iokit.IOUSBHIDDriver          5.2.5
com.apple.driver.AppleThunderboltDPInAdapter          1.8.9
com.apple.driver.AppleThunderboltDPAdapterFamily          1.8.9
com.apple.driver.AppleThunderboltPCIDownAdapter          1.2.6
com.apple.driver.AppleUSBMergeNub          5.5.0
com.apple.driver.AppleUSBComposite          5.2.5
com.apple.driver.AppleThunderboltNHI          1.6.3
com.apple.iokit.IOThunderboltFamily          2.1.8
com.apple.iokit.IOUSBUserClient          5.5.0
com.apple.iokit.IOAHCIFamily          2.3.1
com.apple.iokit.IOUSBFamily          5.5.0
com.apple.driver.AppleEFIRuntime          1.7
com.apple.iokit.IOHIDFamily          1.8.1
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          220
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.DiskImages          344
com.apple.iokit.IOStorageFamily          1.8
com.apple.driver.AppleKeyStore          28.21
com.apple.driver.AppleACPIPlatform          1.7
com.apple.iokit.IOPCIFamily          2.7.3
com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.corecrypto          1.0

Brand new 2011 macbook pro (preinstalled lion osx) is too slow! Is there anyway to role back to previous OS if it came pre-installed?

I purchased new macbook pro 15" with quad core 2.2 ghz intel i7, 8gb of ram. I swear to god it is slower than my previous 2008 macbook running leopard OS. I use heavy programs pretty often, adobe CS5 and 3D modeling and some rendering on the mac side and and a bit of 3D work with fusion on windows. I was really expecting a performance boost with the new computer, but Lion is annoyingly slow. Even if I am not using any of the heavy stuff and just browsing on the internet, it seems noticeably slower than the 2008 macbook. Typing lags sometimes, genie effect and opening effect lags. The iOS type features are also sluggish. I am about ready to start working again on my old macbook on leopard. I haven't had any issues with the machine completely freezing (though I have had to force quit apps a few times). It is definitely a usable machine, but for the price and newness I expect the performance to be better than the 2008 macbook. From what I have read on the forums, I am blaming the buggy Lion OS for my troubles. I figured the OS might still have some bugs as it was brand new, but this is more than I bargained for.
Does anyone know if it is possible to role back to Snow Leopard? I have heard it can't be done if the computer came pre-installed with Lion OS, but surely some clever people have figured a way...

Thanks for your help, I appreciate it.
I am not using Filevault, and the closest genius bar is 4 hours away, so I am trying to figure out a solution via internet. I will check out the Fusion update, though I expect that to be slow (that is the price you pay for running windows on a mac!)
I am surprised you havent noticed the resume/restore windows, docs, and apps feature (for both subsequent openings of program and reboot of system- new to Lion OS) I use the term feature lightly as they didnt seem to work properly initially, like they had cached older stuff than when I actually quit an app or shut down. After the first couple of times of the computer stalling trying to reopen an application with a heavy document or restarting and trying to open EVERY program I had used the day before, I disabled the features. To disable required a bit of a hack with Terminal.
to disable on restart:
http://osxdaily.com/2011/08/25/disable-reopen-windows-when-logging-back-in-in-ma c-os-x-lion-completely/
to disable resuming applications:
http://osxdaily.com/2011/07/18/disable-mac-os-x-lion-resume-window-restore/
--only that doesn't really work (which if you scroll through the comments below you will see what people post about it) I had to expose the hidden library, delete some stuff there, and run some stuff in terminal to get this feature totally disabled, blah blah blah.
These seem like good ideas, but definitely need some tweaking to work properly. I like the iOS features in Mission Control, but the lagging animations are absolutely unacceptable. Even dragging an icon across starts out jerky and sluggish. I never noticed any issue with the OS animations on the 2008 Macbook running Leopard.
Anyway, there are known compatibility issues with Lion and Adobe Creative Suite. Adobe CS5 products are what I use most often, so I would like to role back to Snow leopard, though it is reported that Apple has made that impossible on the new machines that shipped with Lion.

How to restore machine using a TM backup on a usb hard drive from older imac to a brand new iMac?

My imac (the one that had a superdrive in it), had a broken superdrive and was sent for repair. Whilst being "repaired" the screen was broken. I now have a brand new imac albeit without a dvd drive. My question is how to I restore my the old TM back up which had been made to an external usb hard drive to the new imac. Help files say that I should not restore from a TM file to a different machine and that I should use migration assistant. Whilst I can see the external usb drive in TM it is not being recognised in Migration assistant when I click on back up from a TM backup on another machine or disk.
Any ideas?
Just noticed that this new machine is running OSX 10.8.4 the broken imac was on mavericks

This is very simple first run Software Update on the new machine and get your machine upgraded to the most recent version of Mountain Lion 10.8.5. Install all other software updates Apple recommends in Software Update. Then care fully read Pondini's guide on using Migration Assistant located at:
http://pondini.org/OSX/MigrateLion.html
Your migrated data will be in a new account, to access it log into the new account.
Also DO NOT repeat DO NOTuse Wi-Fi to migrate data, if your TM backup drive uses USB, then connect it via USB and follow the on-screen instructions as described in Pondini's guide.

Brand new molassas - log jam

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