tag:blogger.com,1999:blog-549043503714582179.post3945242824171457567..comments2024-03-13T16:27:52.280+11:00Comments on ASM Support Guy: ASM file number 8Bane Radulovichttp://www.blogger.com/profile/07892013690973803072noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-549043503714582179.post-24544251539959571042022-01-04T18:50:09.418+11:002022-01-04T18:50:09.418+11:00Thiis is a great post thanksThiis is a great post thanksZoey Robertshttps://www.zoeyroberts.com/noreply@blogger.comtag:blogger.com,1999:blog-549043503714582179.post-81141106361289691782012-12-13T19:20:50.096+11:002012-12-13T19:20:50.096+11:00Thanks Ognyan,
My understanding is that this hot/...Thanks Ognyan,<br /><br />My understanding is that this hot/cold split is both automatic and dynamic. That means ASM will determine the percentage of the disk size to be the hot region and the rest will be cold. If the hot region becomes full and you want to move more files into the hot zone, ASM will extend the hot region and shrink the cold.<br /><br />You are right about the disks made of LUNs from the storage array. While ASM sees the disk 'tracks', it has no idea about the actual track placements. In short, it doesn't make any sense to implement this feature with such storage system.<br /><br />Cheers,<br />BaneBane Radulovichttps://www.blogger.com/profile/07892013690973803072noreply@blogger.comtag:blogger.com,1999:blog-549043503714582179.post-87157622376362209192012-12-12T23:39:39.918+11:002012-12-12T23:39:39.918+11:00Hello Bane,
Great post, it is actually not mentio...Hello Bane,<br /><br />Great post, it is actually not mentioned anywhere how ASM will judge which zone is hot and which is cold ? Do you have any thoughts about this.<br />From docs it says:<br />Because Intelligent Data Placement leverages the geometry of the disk, it is well suited to JBOD (just a bunch of disks).<br />In contrast, a storage array with LUNs composed of concatenated volumes masks the geometry from Oracle ASM. <br /><br />Does this mean it can't decide which LUN part is hot which is cold with storage array LUNs ?<br /><br />BR<br />OgnyanDemon_A_Go-Gohttps://www.blogger.com/profile/11375876075155739318noreply@blogger.com