It's the minimal size to which the shrink command will go. However, the "MinSize" property still contains the "Initial" size. You can see that the "size" property is changed to reflect the new size. 288 data pages.ĪLTER DATABASE MODIFY FILE ( NAME = N'test', SIZE = 50MB ) parameters for DBCC PAGE: (Dbname, fileID, pageID, outputTypeID)ĭBCC PAGE('Test_100',1,0,3)with tableresultsīoth sizes are in the amount of data pages. In there you have, amongst others, 2 properties: size and minsize.Īt creation of the file, both file header properties get filled with the inital value:
The first page of a dattabase file is the file header page. Well how come that DBCC SHRINKFILE or DBCC SHRINKDATABASE "know" the initial size then? Even after you have changed the size. Even the "Initial size" property in SSMS just shows actual size, not the initial size. However, once the database is created, from a DBA perpective there is no such thing as a "initial size" there is only one property visible for a DBA and that is: the actual size. You can either explicitly specify this in the CREATE DATABASE statement, or you can have SQL Server implicitly copy it from the model database by ommiting that information during creation. It's the first size that is used during creation of the database. Basically, your intial size is just a concept. I feel that the "Initial size" label that you see when you look at the file properties in SSMS is a misnomer. shrink the the first file of your current database to the target size that you just found.ĭBCC SHRINKFILE some extra info is needed after your edits and comments.įirst of all. If you have multiple files, change for the one you need to find. Find size of modelDB mdf file, this is your initial file size used for the userdbĪND file_id= 1 -first file is mdf, assuming you have a model with just one mdf. Initial size is not just 3MB, it is taken from the model database (if not specified during the creation of your user database.) So assuming you haven't specified a initial size during the creation of your user db and you haven't altered the model database file sizes after you have created your userdb you can do the following:ĪLTER DATABASE MODIFY FILE ( NAME = N'Test', SIZE = 100MB ) Remember to do this before you go to factory resets. If you are still in the problem, you can try searching help for your problem or contacting your manufacturer's customer support personnel. Make sure that the relevant updates are compatible with your device, referring to your manufacturer's website. And keep in mind that you'll lose your manufacturer's warranty by doing such fixes.
Do not attempt to quick hardware fixes unless you have clear understanding of what you're doing. If you believe your problem is caused by a specific app, try uninstalling and re-installing that app. (Some say it should be 2% of total memory)
#I WANT TO DEFRAG MY COMPUTER FREE#
It is better to have more than 50MB free so that the apps can work smoothly. Make sure you remove your SIM card (and the battery and SD card as well, if they are detachable) and wait about 30 minutes. Keep your device switched off for a while. You can use your power key or a third party reboot app It is better to have backups for personal data and app data separately. Backup your data first (of course, if possible). Most of the problems can be solved following these steps.īackup your data. There are several steps/things you can do before you do advanced troubleshooting. Even if they "work", there is no reason to use them. Apps that claim to perform defragmentation are suspicious at best.
#I WANT TO DEFRAG MY COMPUTER ANDROID#
Flash memory firmwares will actually fragment data intentionally, in a practice known as wear-leveling, which helps to prevent specific cells from being overused and wearing out more than others.įlash-based devices generally benefit from TRIMing, but Android 4.3 or higher will do this for you automatically. In fact, defragmenting flash media could potentially be detrimental, because it will wear the memory faster while not providing any benefit. Flash media has none of these moving parts, and therefore does not suffer from the same problems as mechanical drives. The reason defragmenting is beneficial to mechanical hard drives is because it makes related data blocks contiguous, so that they can all be read in order as the disk is spinning and minimizing the amount of movement needed from the drive heads. It serves no purpose, because access to any flash cell is going to take the same amount of time as access to any other flash cell. There's no reason to defragment flash media.
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