For the SQL Server database, the third party file caches are valuable for increasing its performance. But the proper approach is important during implementation or else the database may reach to the stage of harsh corruption and you may require SQL repair. For the complete safety, these should be tested for configuration.
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Before applying a third party file cache, you should be ensured that the proper write ordering and dependent write consistency have been maintained. You should also check that the writes have been done on the stable media and the torn I/O prevention is there. These considerations are necessary to maintain the database integrity while applying these third party tools.
The incompatibility issues with the SQL Server can also contribute to make the situations worse. Basically, there should not be the use of buffering flags. This can happen that the WAL protocol requirements may break while combining and reordering writing. These protocol requirements may also get broken when the caches tries to fulfill the I/O requests based on the I/O path block size. In these scenarios, the database gets prone to damage, although performance has been boosted up.
If too many objects of the database are being modified, the database may get corrupted. Also there are various scenarios in which the power outage can damage the existence of log and hence the committed transaction can’t be rolled back for SQL recovery. The database may reach to the suspected state in many cases, without the clue of cause.
The database backup, which you usually take to avoid the MDF recovery need, may also get affected. Actually, for backing up the database, this should be ensured that the SQL Server is writing properly to the backup media. In case of power failure, the database backup may not get completed and hence the SQL recovery may be guaranteed.
Thus this is required that the non-battery backed cache should be implied to prevent corruption. This is the primary thing to be looked in.
However the data which has been written once and has gone corrupted can be made to undergone MDF repair with the suitable applications. These MDF recovery applications run the powerful scanning algorithms to drag out the corrected information. Specifically called SQL recovery software, these repair applications are applicable to all the corruption scenarios.
Stellar Phoenix SQL Database Recovery software is the most advanced software which makes use of the well developed scanning algorithms to repair and restore the corrupted database. This SQL repair application does not alter the data due to its read-only nature and does the wonderful job in this era. This MDF repair software is applicable to the all the objects of database and all the corruption scenarios with complete SQL repair options.