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Is it bad to defrag everyday?
Generally, you want to regularly defragment a mechanical Hard Disk Drive and avoid defragmenting a Solid State Disk Drive. Defragmentation can improve data access performance for HDDs that store information on disk platters, whereas it can cause SSDs that use flash memory to wear out faster.
Can I use my PC while defragging?
To answer your question, no you should not use your computer while it is in the defragmentation process. You should have all programs closed while it is defragging as well. Any file that is being accessed by another program becomes immovable which defeats the purpose of defragging.
What should I do if my SQL Server index is fragmentation?
If you can’t cache the database in memory, or you want to fix it on disk anyway, you can solve it by rebuilding or defragmenting the index. Most folks do this with maintenance plans, but those have a nasty problem. They rebuild (or defrag) every single index in the database, every time, whether it’s necessary or not.
Why does SQL Server rebuild every single index?
They rebuild (or defrag) every single index in the database, every time, whether it’s necessary or not. The maintenance plans ignore whether the table’s even had a single write since the last time it was maintained. This is a problem because rebuilding and defragmenting indexes causes SQL Server to write to the transaction log.
What’s the fill factor of a SQL Server index?
After finding out almost all databases on my SQL Server had fragmentation over 40%, I decided to do an index rebuild on all tables using a fill factor of 80. After rebuilding all indexes, some queries seem to take forever for at least two queries/tables.
Why does SQL Server index take so long?
This means every time we need to scan the index, it’ll take 10% longer (1,100 pages instead of 1,000). This also means we need more memory to cache the same amount of data – because SQL Server has to cache the empty space on each page. Our lowest unit of caching is a single page, not a record.