Here is the information of the created raid0. Hope it is enough. Jeff The crashing one: md: bind<sdd> md: bind<sde> md: raid0 personality registered for level 0 md0: setting max_sectors to 4096, segment boundary to 1048575 raid0: looking at sde raid0: comparing sde(5859284992) with sde(5859284992) raid0: END raid0: ==> UNIQUE raid0: 1 zones raid0: looking at sdd raid0: comparing sdd(5859284992) with sde(5859284992) raid0: EQUAL raid0: FINAL 1 zones raid0: done. raid0 : md_size is 11718569984 blocks. raid0 : conf->hash_spacing is 11718569984 blocks. raid0 : nb_zone is 2. raid0 : Allocating 8 bytes for hash. JFS: nTxBlock = 8192, nTxLock = 65536 The working one: md: bind<sde> md: bind<sdf> md: bind<sdg> md: bind<sdd> md0: setting max_sectors to 4096, segment boundary to 1048575 raid0: looking at sdd raid0: comparing sdd(2929641472) with sdd(2929641472) raid0: END raid0: ==> UNIQUE raid0: 1 zones raid0: looking at sdg raid0: comparing sdg(2929641472) with sdd(2929641472) raid0: EQUAL raid0: looking at sdf raid0: comparing sdf(2929641472) with sdd(2929641472) raid0: EQUAL raid0: looking at sde raid0: comparing sde(2929641472) with sdd(2929641472) raid0: EQUAL raid0: FINAL 1 zones raid0: done. raid0 : md_size is 11718565888 blocks. raid0 : conf->hash_spacing is 11718565888 blocks. raid0 : nb_zone is 2. raid0 : Allocating 8 bytes for hash. JFS: nTxBlock = 8192, nTxLock = 65536 -----Original Message----- From: Neil Brown [mailto:neilb@xxxxxxx] Sent: Wednesday, 16 May 2007 12:04 p.m. To: Michal Piotrowski Cc: Jeff Zheng; Ingo Molnar; linux-raid@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux-fsdevel@xxxxxxxxxxxxxxx Subject: Re: Software raid0 will crash the file-system, when each disk is 5TB On Wednesday May 16, michal.k.k.piotrowski@xxxxxxxxx wrote: > > > > Anybody have a clue? > > No... When a raid0 array is assemble, quite a lot of message get printed about number of zones and hash_spacing etc. Can you collect and post those. Both for the failing case (2*5.5T) and the working case (4*2.55T) is possible. NeilBrown - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
