Subject: RE: VTAPE Performance
From: Kevin Corkery (kcorkery@comcast.net)
Date: Wed Aug 06 2008 - 10:41:48 EDT
Frank ... I will take this under advisement. Unfortunately, the WinFolk control the LAN and I suspect it may be difficult to get a Linux box installed unless I have a real good justification. I may just play around with the SCO/Unix Flex/ES system and see if I can produce a benchmark. Thanks. .... Kevin -----Original Message----- From: owner-vse-l@Lehigh.EDU [mailto:owner-vse-l@Lehigh.EDU] On Behalf Of Frank M. Ramaekers Sent: Wednesday, August 06, 2008 10:34 AM To: VSE Discussion List Subject: RE: VTAPE Performance I would disagree...when I was exploring the performance problems with VTape Server, I found the problem to be in Windows/XP and or the Java Engine (as implemented on XP). Taking the same setup to a Linux box, improved the performance. So, the problem (especially in my case was NOT the mainframe). Frank M. Ramaekers Jr. Systems Programmer MCP, MCP+I, MCSE & RHCE American Income Life Insurance Co. Phone: (254)761-6649 1200 Wooded Acres Dr. Fax: (254)741-5777 Waco, Texas 76710 -----Original Message----- From: owner-vse-l@Lehigh.EDU [mailto:owner-vse-l@Lehigh.EDU] On Behalf Of Kevin Corkery Sent: Wednesday, August 06, 2008 8:55 AM To: VSE Discussion List Subject: RE: VTAPE Performance FWIW ... a VTAPE file being created from my FlexES system to a Win200X Server took 3 hours. If I wrote it to Faketape then FTPed from the SCO/Unix to Win200X system, the FTP took about 10 minutes. Both systems are on the 1Gb Ethernet backbone. The z9 OSA QDIO is good bit faster but not nearly as fast as the FTP. My conclusion is that most of the overhead lies on the mainframe side of the equation. -----Original Message----- From: owner-vse-l@Lehigh.EDU [mailto:owner-vse-l@Lehigh.EDU] On Behalf Of Edward M. Martin Sent: Wednesday, August 06, 2008 9:43 AM To: VSE Discussion List Subject: RE: VTAPE Performance Hello Pete, I am using VTAPE on a VSE 261 and z/VSE 4.1.2 system. I only use them selectively but I have not noticed any overall performance problems. Ed Martin 330-588-4723 ext 40441 -----Original Message----- From: owner-vse-l@Lehigh.EDU [mailto:owner-vse-l@Lehigh.EDU] On Behalf Of Panayiotis Petrou Sent: Wednesday, August 06, 2008 4:25 AM To: VSE Discussion List Subject: VTAPE Performance Is anybody running VTAPE server under Windows Xp and encountering performance issues. Thanks Panayiotis (Pete) Petrou VSE Systems Programmer Information Technology Division Bank Of Cyprus Tel. +357-22-848473 panayiotis.petrou@itd.bankofcyprus.com ************************************************************************ ********************** Please don't print this e-mail unless you really need to. IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email in error, please notify the system manager or the sender immediately and do not disclose the contents to anyone or make copies thereof. *** eSafe scanned this email for viruses, vandals, and malicious content. *** ************************************************************************ ********************** _____________________________________________________ This message contains information which is privileged and confidential and is solely for the use of the intended recipient. If you are not the intended recipient, be aware that any review, disclosure, copying, distribution, or use of the contents of this message is strictly prohibited. If you have received this in error, please destroy it immediately and notify us at PrivacyAct@ailife.com.
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