Date: Mon, 6 Feb 2012 11:57:05 +0100 From: "Patrick M. Hausen" <hausen@punkt.de> To: stable@freebsd.org Subject: Swap on zvol - recommendable? Message-ID: <99FFD8AE-F4E0-4BD9-92BC-45D8C8A31383@punkt.de>
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Hi, all, is it possible to make a definite statement about swap on zvols? I found some older discussions about a resource starvation scenario when ZFS arc would be the cause of the system running out of memory, trying to swap, yet the ZFS would not be accessible until some memory was freed - leading to a deadlock. Is this still the case with RELENG_8? The various Root on ZFS guides mention both choices (decicated or gmirror partition vs. zvol), yet don't say anything about the respective merits or risks. I am aware of the fact that I cannot dump to a raidz2 zvol ... Thanks for any hints, Patrick --=20 punkt.de GmbH * Kaiserallee 13a * 76133 Karlsruhe Tel. 0721 9109 0 * Fax 0721 9109 100 info@punkt.de http://www.punkt.de Gf: J=FCrgen Egeling AG Mannheim 108285
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