Hi,
DBCC Checkdb was taking 2 days until last week and now it is running for almost 4 days and showing that it only completed ~38% as per following data from sys.dm_exec_requests and most of the waits are on CKPACKET. This is 24 cpu machine with 48GB memory and is currently only used by checkdb on restored database from production, What can be the possible issue?
session_id request_id start_time status command sql_handle
statement_start_offset statement_end_offset plan_handle
database_id user_id connection_id blocking_session_id wait_type
wait_time last_wait_type
wait_resource
open_transaction_count open_resultset_count transaction_id
context_info
percent_complete estimated_completion_time cpu_time total_elapsed_time scheduler_id task_address reads
writes logical_reads text_size language
date_format date_first quoted_identifier arithabort ansi_null_dflt_on ansi_defaults ansi_warnings ansi_padding ansi_nulls concat_null_yields_null transaction_isolation_level lock_timeout
deadlock_priority row_count prev_error nest_level granted_query_memory executing_managed_code group_id query_hash query_plan_hash
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----------- ---------- ----------------- ---------- ----------------- ------------- ------------- ------------ ---------- ----------------------- --------------------------- ------------ ----------------- -------------------- ----------- ----------- --------------------
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55 0 2012-10-20 22:24:39.260 suspended DBCC TABLE CHECK 0x02000000FD7B49186B2EFC423F661E7F576C004979728236
0 -1 0x06000900FD7B491840414843030000000000000000000000
9
1 2396537F-A338-4990-AB6D-103866240C05 0 CXPACKET
324026692 CXPACKET
1 1
6334466 0x
37.25394 553896082
29777934 556451384 18 0x00000000050EA508 42418035 270
43100347 1024 us_english
mdy 7 1 1 1 0
1 1 1 1 2
-1 0 8239114 0 1
357501 0 2 0x0000000000000000 0x0000000000000000
(1 row(s) affected)