Use a single snapshot folder for a publication.Use the default native mode snapshot for all Subscribers except non-SQL Server Subscribers and Subscribers running SQL Server Compact, which require a character mode snapshot. Use a native mode snapshot unless a character mode snapshot is required.See Enhance General Replication Performance: See Use Native Format to Import or Export Data.Īdditionally you should also compress the snapshots. This format is only slightly longer than the native SQL storage when comparing individual values, but it can result in actually smaller files than SQL Server required storage because the bcp file is dense: there is not page header overhead, nor partially filled pages (fragmentation, fill-factor). The native format alternative is the bcp utility native format (since snapshots are applied using bcp). Dates, floats, numerics all will usually increase, and by even bigger factors than x4. an int column takes 4 bytes, but the character representation of 1000000 takes ~16 bytes as Unicode, including delimiters. Depending on type, it can exceed by a large margin. Note that Character representation of any data will almost always exceed the original size. Total : 7878 Average : (27796.01 rows per sec.)Ĭ:\>bcp IVM_ out D:\NOBACKUP\UseOnce\EventChar.dat -T -c Network packet size (bytes): 4096 Clock Time (ms.) Native mode file Size:105 MBĬ:>bcp IVM_ out D:\NOBACKUP\UseOnce\EventNative.dat -T -nĢ18977 rows copied. Is there a different in size between formats? This despite the fact that at both ends of this transnational replication is native SQL Server. In my examination of possible causes I note that the snapshot format is set to "Character - Required if a publisher or subscriber is not running SQL Server". I 'd welcome any explanation for this huge size of snapshot. Last night the snapshot filled a disk with 340GB of free space. We've had several attempts at creating the snapshot and these have failed due to lack of disk space. This meant we had an expectation of snapshot size being ~75GB. The size of the database is 135GB, one table within the database is 60GB - we have excluded this article from the publication. I am searching for an explanation of a replication snapshot being in excess of 5 times what we're predictingįollowing a replication failure we are attempting to reinitialise subscriptions with a new snapshot. Add driver package pnputil /add-driver x:\driver.inf Add multiple driver packages pnputil /add-driver c:\oem\*.inf Add and install driver package pnputil /add-driver device.inf /install Enumerate OEM driver packages pnputil /enum-drivers Delete driver package pnputil /delete-driver oem0.inf Force delete driver package pnputil /delete-driver oem1.inf /force Export driver package pnputil /export-driver oem6.inf. This topic provides examples on how to use the PnPUtil tool.
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