I've never run out of space in a partition with file volumes but I assume it would give an error if it tried to write to a file and had no space. It would then continue on to the next file etc until it found space or ran out of files.
We are at 5.2.2.4 on Windows 2003 and have found that TSM will use all of the predefined volumes in one partition before using ones in the next. Tim Rushforth City of Winnipeg -----Original Message----- From: Steve Bennett [mailto:[EMAIL PROTECTED] Sent: Thursday, January 27, 2005 11:29 AM To: [email protected] Subject: using sata with sequential file preallocation Here is a question for all of you that are using large disk arrays with stgpools using seq file type. TSM server v5.2.3.2 Win2000 We are installing a 6tb sata raid5 array as an intermediate stgpool to be used with sequential file type. The array will have 3 partitions of 2tb each and all files will have be preallocated because of the devclass limitation of only using one partition dynamically. The hierarchy will be local disk --> local attached sata --> tapepool. Let's say I predefine 1000 files of 1gb each (1tb total out of 2tb available) in each of the partitions and then set the devclass max capacity to 20gb. When writing data to the intermediate stgpool TSM will keep adding files up to 20gb each and up to 1000 files or until the partition is full at something less than 1000 files. With mostly 20gb files the partition will fill with about 100 files. What happens next? Does TSM then use preallocated files in the next available partition or does it give some sort of allocation error because it hasn't used the 1000 files but has run out of space in the first partition? I guess another question might be, does TSM do some sort of round robin use of files on the three partitions or does it use files on one partition until it is forced to use files on the next partition? -- Steve Bennett, (907) 465-5783 State of Alaska, Enterprise Technology Services, Technical Services Section
