We're faced with the following error when a query runs against a partitioned table with Read-Only file groups:

The index "ix_my_index" for table "dbo.my_table" (RowsetId 72057600379912192) resides on a read-only filegroup ("MyFileGroup"), which cannot be modified

How would I identify which row the query is trying to modify from the RowsetID?

I know sysrowsets used to exist, but doesn't seem to in SQL Server 2012.


1 Answer 1


That looks like a partition_id to me, not "a row." You can start to get an idea of what values might be stored in that partition through the following:

SELECT partition_number
  FROM sys.partitions
  WHERE partition_id = 72057600379912192;

Then you'll have to look at the partition function / scheme to tell where the boundaries are for that specific partition.

I don't think sys.sysrowsets is going to tell you anything that sys.partitions won't. It's unfortunate that the product interchanges words like partition_id, hobt_id, and RowsetId so carelessly.

  • Ah, that would make much more sense! Apr 2, 2015 at 14:10

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