RE: Eseutil

[Briggs, Bruce]

Title: Message

Excellent description. This one should be added to the FAQs.   -----Original Message----- From: Woodrick, Ed [mailto:[EMAIL PROTECTED]] Sent: Wednesday, October 31, 2001 4:49 PM To: MS-Exchange Admin Issues Subject: RE: Eseutil Sherry,   You aren't going to win this one.   If you were to NEVER run eseutil again, you would have just as much space used on your server. The 16GB limit has nothing to do with it.     The DEFRAG process DOES NOT RECOVER SPACE!   Defrag ONLY takes messages that are interspersed across the database and moves them to the front of the database.   eseutil will COMPACT a database. But it doesn't recover any space. It actually reduces the space in the database.   The procedure that you are performing WILL REDUCE THE PERFORMANCE of your server. It WILL NOT GAIN SPACE!!!   Look at the database as a bucket. All day long you put in cubes and remove cubes of various sizes. As you do this, the number of holes increases. If these holes are relatively small, you can't stick a big cube in it's place and the space becomes useless except for really small cubes.   Every night, Exchange goes through the bucket and reorganizes the cubes, not only once, but twice. So by morning, the cubes are packed really tight and there are no holes between the cubes. Therefore all of the unusable space has been recovered.   Exchange recovers the unusable space every evening, twice. All you are doing is shrinking the bucket every night. Once you shrink the bucket, you have to work hard to expand it. EVERY message that comes into your server during the day forces your bucket to increase in size, resulting in a performance penalty.   I will absolutely, positively guarantee you that the process you are performing is not giving you an advantage and actually has a high probability of causing you problems.   Ed     -----Original Message----- From: Abercrombie, Sherry [mailto:[EMAIL PROTECTED]] Posted At: Wednesday, October 31, 2001 3:11 PM Posted To: Exchange Sunbelt Conversation: Eseutil Subject: RE: Eseutil I suppose I should have been a little more informative.  I do delete a large amount of data on a weekly basis using the Mail Box Manager.  On average, it deletes about half a GB of space per week, so in my situation, regaining 2 GB worth of space is worthy of running eseutil on a monthly basis.  We have 1 Saturday a month that management has giving us for "Network Maintenance" were we have a 12 hour window of doing whatever we want to maintain our network.  Installing SP's, new software, replacing hardware etc.  So, in my environment of being stuck with Exchange 5.5 Standard, not being able to upgrade and not having the enterprise edition, to keep Exchange running 24/7 it is a necessary procedure. List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm