)]}'
{"releasenotes/notes/fix-drives-conversion-before-raid-creation-ea1f7eb425f79f2f.yaml":[{"author":{"_account_id":7160,"name":"arkady kanevsky","email":"akanevsk@redhat.com","username":"arkady"},"change_message_id":"10bf383ab8ef3dd71e0d46136c5c2dd3763170f7","unresolved":false,"context_lines":[{"line_number":5,"context_line":"    included in a virtual disk.  When this conversion happens,"},{"line_number":6,"context_line":"    the available free space on the physical disk is reduced due"},{"line_number":7,"context_line":"    to some space being allocated to RAID mode housekeeping."},{"line_number":8,"context_line":"    If the user requests a virtual disk (a RAID 1 for example)"},{"line_number":9,"context_line":"    with a size close to the max size of the physical disks when"},{"line_number":10,"context_line":"    they are in JBOD mode, then creation of the virtual disk"},{"line_number":11,"context_line":"    following conversion of the physical disks from JBOD to RAID"},{"line_number":12,"context_line":"    mode will fail since there is not enough space due to the"},{"line_number":13,"context_line":"    space used by RAID mode housekeeping."},{"line_number":14,"context_line":"    This patch works around this issue by recalculating the RAID"},{"line_number":15,"context_line":"    volume size after physical disk conversion has completed and"},{"line_number":16,"context_line":"    the free space on the converted drives is known.  Note that"}],"source_content_type":"text/x-yaml","patch_set":1,"id":"9f560f44_77fffe65","line":13,"range":{"start_line":8,"start_character":4,"end_line":13,"end_character":41},"updated":"2020-10-02 22:50:51.000000000","message":"Why do we allow virtual volumes to sue disks when it changes its RAID?\n\nI agree with the calculation and logic of this implementation.","commit_id":"406b7a51771f3c5df3415bffa4fce93dfc516aa5"},{"author":{"_account_id":23847,"name":"Richard G. Pioso","email":"richard.pioso@gmail.com","username":"richard.pioso"},"change_message_id":"1c0768bab416dafef18e14d1023764b5688d7baf","unresolved":false,"context_lines":[{"line_number":5,"context_line":"    included in a virtual disk.  When this conversion happens,"},{"line_number":6,"context_line":"    the available free space on the physical disk is reduced due"},{"line_number":7,"context_line":"    to some space being allocated to RAID mode housekeeping."},{"line_number":8,"context_line":"    If the user requests a virtual disk (a RAID 1 for example)"},{"line_number":9,"context_line":"    with a size close to the max size of the physical disks when"},{"line_number":10,"context_line":"    they are in JBOD mode, then creation of the virtual disk"},{"line_number":11,"context_line":"    following conversion of the physical disks from JBOD to RAID"},{"line_number":12,"context_line":"    mode will fail since there is not enough space due to the"},{"line_number":13,"context_line":"    space used by RAID mode housekeeping."},{"line_number":14,"context_line":"    This patch works around this issue by recalculating the RAID"},{"line_number":15,"context_line":"    volume size after physical disk conversion has completed and"},{"line_number":16,"context_line":"    the free space on the converted drives is known.  Note that"}],"source_content_type":"text/x-yaml","patch_set":1,"id":"9f560f44_37bd8667","line":13,"range":{"start_line":8,"start_character":4,"end_line":13,"end_character":41},"in_reply_to":"9f560f44_77fffe65","updated":"2020-10-03 21:21:34.000000000","message":"Certain RAID controllers, such as the PERC H730P, manage physical disks modally. Physical disks are in either JBOD or RAID mode. For such controllers, the physical disks must be in RAID mode when a request to create a RAID virtual disk backed by them is made.\n\nThe creation cleaning step selects the physical disks before ensuring they are in RAID mode and converting those which are not. The available physical disk free space reported by the iDRAC depends on the mode and differs between the two modes. Mode conversion can take substantial time to complete, including a reboot.\n\nFor this corner case, the implemented solution trades off a small difference between the requested and actual size of the RAID logical disk for a better user experience.","commit_id":"406b7a51771f3c5df3415bffa4fce93dfc516aa5"}]}