[OmniOS-discuss] Advanced format disks – 512E

[Richard Elling]

On Aug 21, 2013, at 5:26 PM, Michael Rasmussen <mir at miras.org> wrote:

> On Wed, 21 Aug 2013 17:17:56 -0700
> Richard Elling <richard.elling at richardelling.com> wrote:
> 
>> 
>> Broken parted? :-P
>> 
> jep. Generic IDE from a SATA 3 disk looks weird;-)
>>> Partition Table: gpt
>>> 
>>> Number  Start   End     Size    File system  Name  Flags
>>> 1      131kB   1000GB  1000GB               zfs        
>>> 9      1000GB  1000GB  8389kB                          
>> 
>> The OmniOS equivalent "prtvtoc /dev/rdsk/c7t2d0p0" should should show
>> something like:
>> prtvtoc /dev/rdsk/c1t8d0p0                                                                                                                                            
>> * /dev/rdsk/c1t8d0p0 partition map
>> *
>> * Dimensions:
>> *     512 bytes/sector
>> * 27262976 sectors
>> * 27262909 accessible sectors
>> *
>> * Flags:
>> *   1: unmountable
>> *  10: read-only
>> *
>> * Unallocated space:
>> *       First     Sector    Last
>> *       Sector     Count    Sector 
>> *          34       222       255
>> *
>> *                          First     Sector    Last
>> * Partition  Tag  Flags    Sector     Count    Sector  Mount Directory
>>       0      4    00        256  27246303  27246558
>>       8     11    00   27246559     16384  27262942
>> 
>> Which is how the default ZFS partition is set. 256 sectors is a multiple of 1 and 8.
>> Methinks something else is going on here.
>> -- richard
>> 
> prtvtoc /dev/rdsk/c7t2d0p0
> * /dev/rdsk/c7t2d0p0 partition map
> *
> * Dimensions:
> *     512 bytes/sector
> * 1953525168 sectors
> * 1953525101 accessible sectors
> *
> * Flags:
> *   1: unmountable
> *  10: read-only
> *
> * Unallocated space:
> *	First     Sector    Last
> *	Sector     Count    Sector 
> *          34       222       255
> *
> *                          First     Sector    Last
> * Partition  Tag  Flags    Sector     Count    Sector  Mount Directory
>       0      4    00        256 1953508495 1953508750
>       8     11    00  1953508751     16384 1953525134

ok, so you're aligned :-) Problem is something else :-(
Since this is a mirror, use "iostat -zxn 1" to see if the two sides of the mirror have
different service times (asvc_t). 
 -- richard


--

Richard.Elling at RichardElling.com
+1-760-896-4422



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