RAC -- Alternatives for Time Machine?????

We used Time Machine on our Oracle 8i databases to be able to change the time on our test databases without changing the system time. This allows us to retest things that occurred in the past, and test using future dating. We are currently testing Oracle 10g, and discovered that the time gets off on each server when using time machine. Oracle claims there is no time tool for a RAC configuration. Oracle recommended changing the application, by creating a funtion that is called at every select sysdate from dual, which could modify the time. This type of change would be very costly because our application references sysdate from dual alot. Are there any other alternatives that would work in the environment I have described? We want to be able to change the date/time on a test database, but not affect the date/time on other databases that run on that same server.

Time machine is a product we purchased
from Solution Soft.Have you contacted the original vendor?
Why can't you just run this product on each node in the cluster?
Is fixed_date used to set a specific date/time, but
the database does not increment the time from then
on, until you set it to another date/time? Correct.
If that
is true, using fixed_date would not be practical for
us, because we would have to set fixed_date every
time we wanted the date/time to change. We have alot
of transactional processes that would have a problem
with the date/time not incrementing regularly.Out of curiosity, why would OLTP processes have a problem if the clock is stopped for a period of time? OLTP processing would generally be using SYSDATE to indicate the time that it inserted or modified a row or to find "recent" rows in a table. That sort of thing wouldn't normally be impacted if multiple calls happened to return the same date.
Justin

Similar Messages

  • Is there an alternative device for Time Machine Backup?

    Hello All,
    I am stretching my dollars when I am saying I am going to buy Airport Extreme or Time capsule. Do you have any recommendation if any of the wireless routers out there in the market can do this trick. I would greatly appreciate if you can give me a response.
    Thanks
    S

    A $99 AirPort Express + an external hard disk drive will cost less than a Time Capsule.
    The Express includes most of the features of the more expensive Extreme. Though the Extreme supports an external HDD you can only use a hard disk attached to your Mac for Time Machine. Either way, you will need an external backup device and an inexpensive hard disk drive offers the cheapest cost per unit storage.

  • Can I use Time Capsule for Time Machine and a place to put my iPhoto Library

    Can I use Time Capsule for Time Machine and a place to put my iPhoto Library?

    Only if you partition the Time Capsure into two partitions, one for TM and one for the iPhoto LIbrary.  But you won't be able to backup that library as it will be on the same drive as the TM backups.
    It's not recommended.  An alternative solution is to get another EHD, move the library to it and run it from there. Then TM can backup both your boot drive and the working EHD drive.
    OT

  • Cleaning virus-infected files on external hard drive used for Time Machine

    I am kinda reposting this with some extra explanation since I didn't really get any good respnses on my first post:
    I am running McAfee VirusScan and it locates and cleans virus infected files just fine on my computer, but when it finds infected files on the external hard drive I use for Time Machine backups, it says "Repair Failed". Is there a way to clean infected files on my Time Machine backup drive?
    I had found a virus in several documents on my Mac, which I cleaned, but it seemed to infect a bunch of the files located in Time Machine as well. I know these files shouldn't harm my Mac, but I still don't like having virus infected files. They seem to propagate and I don't want to give them to any of my Windows-using friends.

    Hi,
    Usually (but not always), virus-infected files aren't system-related, so if they cannot be repaired, there should be an option in VirusScan to delete them or quarantine them instead of repairing them. Assuming that you are archiving Mac-related files and not archives of Windows files, then it should certainly be safe to just have VirusScan delete or quarantine them. An alternative is that you could delete them manually. But before you do any of this, be sure to take a look at the filename and its location in the folder hierarchy to make sure that you aren't removing a file that's critical to the operation of some piece of software.
    Hope this helps,
    Ken

  • Online solution for Time Machine

    I was wondering if anyone had a good solution for automatically backing up Time Machine files online.  The drive I use for my TM backups failed.  Even though my main Mac drive is fine and I can start a new TM archive, I've basically lost the time stamped backups of previous states which comes in handy once in awhile.  So it is necessary to have a backup of the backup which I could do with Raid 1 which I will probably now do.  But ideally it would be nice to backup the TM archive online.  I looked into doing this with CrashPlan but they don't want customers to backup the TM archive because of the file size due to redundancy so it doesn't seem like it would be easy to set it up automatically.  You would have to remember to every once in a while to copy the TM archive to your main drive.  I was hoping that it might be possible to do this with the iCloud drive but it really isn't set up for that.  I know that online backups are slow but once the online backup is seeded I wouldn't think it would be too much of a problem afterwards since TM is incremental and I wouldn't think it would be any slower than the regular incremental online backups for the main drive.

    With Mavericks and later, multiple disks or multiple Time Capsule targets are supported for Time Machine, and the backups will alternate if both are present, or to whichever one is currently present (such as one at home & one at an office, for instance) if both targets are not present at the same time.  (There are wrinkles.)
    Time Machine supports the ability to attach a disk and create a backup archive.
    With directly-attached storage such as USB or Thunderbolt, RAID arrays will work just fine as Time Machine targets.
    With an OS X Server system configured and running — a second Mac Mini, for instance — Time Machine can write to disks on that system, whether RAID or not.
    For off-site backups, making a disk image copy of a Time Machine disk will work probably work, but'll be a pain to restore, and pulling data off of a Time Machine backup is going to be pretty slow due to its complex structure.  You'll usually end up transferring disks around as part of this, unless you have a very big network connection and enough storage (somewhere) to keep a couple of copies around.
    Alternatively, use a different backup tool.
    In general, RAID is not a backup.  User errors, nefarious deletions and ordinary data corruptions can clobber a Time Machine backup, even if the underlying storage hardware is working fine.
    Podini has a whole pile of Time Machine information online.  Some of which is linked above.

  • HT201250 Can I partition my external hard drive and use one partion for time machine and the other one for data that i may want to use in different computers?

    I have this doubt. I've just bought an external drive, especifically a Seagate GoFlex Desk 3 tb.
    I want to know if it is recomendable to make a partion exclusively for time machine and let another one so I can put there music, photos, videos, etc that I should need to use or copy to another computer.
    May half and half, 1.5 tb for time machine and 1.5 tb for data.
    I have an internal hard drive of 500 GB (499.25 GB) in my macbook pro.
    Any recommendation?

    As I said, yes. Be sure your Time Machine partition has at least 1 TB for backups.
    1. Open Disk Utility in your Utilities folder.
    2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
    3. Under the Volume Scheme heading set the number of partitions from the drop down menu to two (2). Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.

  • Can I use my time capsule for time machine back ups and as an external storage device?

    I have a time capsule and have set it up so that my time machine back ups are saved on it, but I would also like to use it as an external hard drive. Is this possible?
    I know nothing about computers so please tell me in very basic terms. thankyou!

    By external hard disk we usually mean one plugged into the computer by USB or Firewire or Thunderbolt.
    None of those works on the TC.. it is plugged in by ethernet or use wireless connection.. that means it is a network drive.. not an external drive. The difference might not mean much to you.. but it is totally different to the computer. In the former case the computer has full control of the disk. In the case of the network drive, the disk is controlled by the TC firmware and the files are stored and accessed by network. This has large implications.
    So here is my standard response.
    Store files on the TC.
    This is asked several times a day.. obviously people are struggling with their latest SSD being too small.
    The TC is not suitable for network file server.. but many people having no choice press it into service as such.
    Major issues.
    1. No backup.. no way Time Machine can backup a network drive. No place to backup to.. So all your files will be at risk. And you will need to buy a third party like CCC to do backup.
    2. The TC cannot be partitioned and mixing TM backups and data is not great. It was and is and ever shall be a backup device for Time Machine.
    3. The drive is slow to spin up and quick to spin down.. there is no control. In fact the TC is so lacking in controls for even the router side.. that you cannot do more than the most basic of setups.
    The following are controls on the hard disk side.
    Reformat it. You can name the share. You can do a full archive of the whole disk. This will go at a speed of aprox. 30-50GB/Hr so calculate how long an archive of a full 2TB will take.
    4. iPhoto in particular can easily corrupt its entire library with wireless networking causing a disconnection to one photo. Even if you do this;;; do not move your photo library... you have been warned!!
              Even apple btw say don’t do it.
    http://support.apple.com/kb/TS5168 Although mostly about FAT32           it adds network drives.
    5. iTunes can constantly lose connection to the library. The disk is slow to respond.. itunes on the computer will constantly spit out errors. Even in the midst of streaming the TC can spin down the disk due to caching.
    6. Do not use any live files on the TC no matter what else you do.. if you edit files in whatever program the file must be on the local hard disk.
    7. The only suitable location for most libraries is a computer. You can plug in an external hard disk.
    Read pondini for some work arounds.
    Q3 here. http://pondini.org/TM/Time_Capsule.html

  • My external hard drive is 'seen' by my iMac and I can go into the Finder and open files and folders. I am using the hard drive for Time Machine back up. However Time Machine says it can't find the drive. Same thing has happened with Final Cut Express.

    My new LaCie external hard drive is 'seen' by my iMac and I can go into the Finder and open files and folders. I am using the hard drive for Time Machine back up. However Time Machine says it can't find the drive.
    The same thing happened recently between Final Cut Express and my other LaCie external hard drive used as the Scratch disk. It fixed itself.
    I've run out of ideas. Help would be very much appreciated. Thanks.

    have you done some searches on FCPx and time machine? Is there a known issue with using a TM drive with FCPx? dunno but ...wait...I'll take 60 sec for you cause I'm just that kind of guy....   google...." fcpx time machine problem"  Frist page link 
    http://www.premiumbeat.com/blog/fcpx-bug-best-practices-for-using-external-hard- drives-and-final-cut-pro-x/
           You cannot have time machine backups on your hard drive if you intend to use it in FCPX.
    booya!

  • Can I use the same external hd for time machine and storage without partitioning it?

    Hello,
    I have been using an external hard drive for my Time Machine that was only used for this purpose.
    I downloaded some files in it that I want to use, and I haven't backed up using Time Machine since.
    Can I download the files on my MacBook from the HD without running into any problems, or is there anything else I should do?
    I prefer not to partition the hd, since I will be deleting these files, or transferring them to a different HD, and using this HD only for Time Machine back ups, as I did previously.
    ** I am not sure if this changes anything, but I just updated from Snow Leopard to Lion.
    Thank you so much

    carolsm wrote:
    Thanks Kappy, I will do that.
    I just really needed these files and had no other hard drive to store them.
    Do you think that it will be okay just this one time if I download the files on my MacBook without compromising my backups?
    I will transfer them to a new hard drive, and erase them from my Time Machine external  hard drive.
    For the time being it will be fine. There is always a chance of a disc crashing and therefore not advisable practice. Some here run seperate drives with Time Machine, Cloned backup and file backup. I have a portable drive I keep Time Machine backups and file backups on. I am running that at my own risk, but no problems over the last couple of years. Just make sure I get it to my normal TM Backup disk as soon as I get home. Backing up those other files will not compromise your Time Machine backups as you asked.
    Cheers
    Pete

  • My 320GB external drive for Time Machine now only has enough capacity to keep a backup of one day. All my other backups are gone.  What can I do to fix this situation?

    I've been using a 320GB external drive for time machine for the last several years.  The backups always worked fine and when necessary I was able to look at & restore older data from the time capsule.  Recently, I keep getting the message that a backup cannot be completed and an older backup will be deleted. Usually this wasn't an issue because I still had several months of information on disk.  Now a one-time backup takes up 315GB and therefore I only have a backup of the previous day.  I don't understand this because I thought that the backup only saves information that has changed and doesn't copy everything everytime.  What do I need to do to get my backups to a reasonable size so that I can keep at least 1 month data stored on it.?  Please don't tell me I need a larger drive ... that would be too easy. 

    Get a larger drive for your TM backups.
    The recommended size is 3 times what you are backup. So if 315 GB is a backup then you need a 1 TB drive.
    Allan

  • I am trying to install Mavericks on my McbookAir, but it won't install, saying that my hd is used for time machine backups. I have an external HD connected to my mbAir that I'm using for time machine.

    2012 Macbk air, with OSX 10.8.5. See my question above. Mavericks won't install on my Air's HD, says that both the HD - AND - the external HD (which has a different name from the laptop HD) are used for time machine backups. I've deleted my time machine plists, restarted, repaired permissions, turned time machine off, repeatedly selected the external drive in time machine preferences. HELP. (Install went perfectly on my desktop Mac, which also has an external HD for time machine).

    I need to add that the only place I have the "Backups.backupdb" folder is on my backup external disk, and it's not on my HD    :-(    . If it were, I'd delete it!

  • Can I use one HD for 2 computer for time machine?

    I have an imac and macbook. I bought a new 500G external harddisk for time machine.. can I share the harddisk between 2 computer?
    Or I have to get 2 HD for 2 computer?

    happygal wrote:
    and can I put my other data on the external harddisk apart from the backup from time machine?
    Absolutely. Yes. You will be limiting the space available for Time Machine though. The more space available, the further back your Time Machine backup trail can go.
    Kryten

  • Can I use a network hard drive for time machine

    Can I use a network drive for my time machine back up.  I currently have a 1TB WD AND its full with mostly videos and other back ups?

    Such a configuration is not supported. This does not mean it will not work, but it is not guaranteed to work reliably.
    Considering the "mission profile" for a backup strategy, you should consider this an unacceptable application for Time Machine.
    Read Apple Support Communities contributor Pondini's Time Machine FAQ discussion regarding this subject here:
    http://pondini.org/TM/2.html
    Scroll down to the pink box.
    There are other, significant concerns regarding sharing a Time Machine volume with other content. Time Machine needs to have control of the whole volume.
    More info here: Mac Basics: Time Machine

  • Use portable hard drive for Time Machine & other things

    I recently purchased a 1 TB portable hard drive. I'd like to use it for my Time Machine backups, as well as moving my iTunes library there. Is this an easy change? I'm not super familiar with hard drive set ups. Will I have to create any partitions on the drive?
    Thanks!

    You're welcome. Make sure your drive is formated as Mac OS Extended (journaled), GUID partition table.
    Here's a nice link to use for Time Machine information.
    You can partition the drive if you want to organize your various backups. For example you might create a Time Machine partition and Other Files partition. When Time Machine is working, it creates a folder (Backups.backupdb) and places the Time Machine backups in that folder. The rest of the partition is open to add whatever you want. I have multiple partitions on my USB external drive with Time Machine backups separated from other backups.

  • Can use old macbook for Time Machine Backup?

    Have an old macbook running snow leopard.  Can I use it for Time Machine Back-up for my current macbook pro?

    Boot your old into Target Disk mode, then plug a FireWire cable from your old to your pro.  Presto!  Your old's internal HD will appear in your pro's Finder as a disk on your pro.  Time machine running on your pro can use it for backup.  Time machine won't disturb its contents, except to add a potentially huge folder there, which will grow to fill the disk with copies of your backups. (Backing up, then) partitioning (and then restoring from backup) your old's internal hard drive will keep your pro's Time Machine from consuming all free space.

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