Backup BIG MySQL Database

What is the recommended method of backing up big MySQL database of size 2 GB ?

Quote:

# mysqldump gallery > gallery.sql
mysqldump: Got error: 1017: Can't find file: './gallery/10tir_user_group.frm' (errno: 24) when using LOCK TABLES
#

I checked the table, it is fine, but can't do the backup.

Quote:

mysql> check table 10tir_user_group;
+-------------------------+-------+----------+----------+
| Table | Op | Msg_type | Msg_text |
+-------------------------+-------+----------+----------+
| gallery.10tir_user_group | check | status | OK |
+-------------------------+-------+----------+----------+
1 row in set (0.07 sec)

mysql>