Code review request for following two bugs : 10115 - AI ignores desired swap listed in ai manifest http://defect.opensolaris.org/bz/show_bug.cgi?id=10115
12960 - Should be possible to define dump ZVOL size in AI manifest http://defect.opensolaris.org/bz/show_bug.cgi?id=12960 Webrev : http://cr.opensolaris.org/~mattman/bug-10115-12960/ Both bugs were addressed together as they affect same code paths. 10115 ----- AI manifest currently provides specification for <ai_swap_size>, however the contents of this element had never been implemented, it was simply ignored. Solution, was to read <ai_swap_size> from manifest, if defined and pass through to liborchestrator via nvlist as new nvpair. 12960 ----- This is a request to allow the specification of dump size in AI manifest. Solution, was to define new section in AI manifest <ai_device_dump> which can contain new element <ai_dump_size>. Parse this element in AI and pass through to liborchestrator in the same manner as swap size. In both cases for swap and dump size, a specification of "0" size is indicative that the user does not want a swap/dump zvol created. The only instance where this is ignored is in the case of swap where a system memory is low e.g. < 700MB, then a default swap slice of 512 is created (see disk_slices.c) Swap and dump sizes are always optional, if neither are specified, then the original algorithm for calculating swap and dump size is used, which is simply RAM/2. If specified swap size takes precedence over dump size. Following testing was carried out. Machine : X86 Vbox Client Disk Size : 16GB (16001 MB) Ram Size : 1GB (1024 MB) Recommended Software Size : ((4096 * 1.2) * 2) + 2048 = 11878 MB Available disk space for swap/dump : (16001 MB - 11878 MB) = 4123 MB Following scenarios were tested : <ai_swap_size> <ai_dump_size> Swap Created Dump Created --------------- ---------------- --------------- ------------ Not Specified Not Specified 512 511 0 Not Specified Not Created 511 250 Not Specified 512 511 1024 Not Specified 1024 511 5000 Not Specified 3867 256 Not Specified 0 512 Not Created Not Specified 250 512 256 Not Specified 1024 512 1024 Not Specified 5000 512 3611 0 0 Not Created Not Created 250 0 512 Not Created 1500 0 1500 Not Created 5000 0 4123 Not Created 0 250 Not Created 256 0 1500 Not Created 1500 0 5000 Not Created 4123 1024 1024 1024 1024 3000 3000 3000 1123 5000 5000 3867 256 1024 4000 1024 3099 1024 5000 1024 3099 4000 1024 3867 256 5000 1024 3867 256
