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Now that mfi(4) header files uses the absolute number of entries to

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make the mfi_array 288 bytes, remove this magic number and the
calculations that go with it.  Use the MFI_MAX_ROW_SIZE and
sizeof(struct mfi_array) in place of the prior calculations.

Change reporting a disk as "SYSTEM" when it is a "JBOD" reported
by the firmware and MegaCli.  A JBOD appears as /dev/mfisyspd<n>.

This also means the mfiutil command to "create jbod" is now a
little confusing since a RAID per drive is not really what LSI
defines JBOD to be.  In the future mfiutil should have an option
to create real JBOD's and enable that option in RAID controllers
that support it.  In testing, it appears the RAID cache is not
used with JBOD but is with the RAID per disk.  When this is
implemented more testing should be done to determine the pro's and
con's of JBOD versus RAID per disk.

Reviewed by:	jhb
This commit is contained in:
Doug Ambrisko 2012-03-28 18:35:07 +00:00
parent 1c59056b92
commit 1d8f043a74
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/projects/head_mfi/; revision=233621
2 changed files with 4 additions and 5 deletions
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7
usr.sbin/mfiutil/mfi_config.c
View File

@ -211,9 +211,8 @@ clear_config(int ac, char **av)
}
MFI_COMMAND(top, clear, clear_config);
#define MFI_ARRAY_SIZE 288
#define MAX_DRIVES_PER_ARRAY \
((MFI_ARRAY_SIZE - sizeof(struct mfi_array)) / 8)
#define MAX_DRIVES_PER_ARRAY MFI_MAX_ROW_SIZE
#define MFI_ARRAY_SIZE sizeof(struct mfi_array)
#define RT_RAID0 0
#define RT_RAID1 1
@ -305,7 +304,7 @@ parse_array(int fd, int raid_type, char *array_str, struct array_info *info)
/* Validate the number of drives for this array. */
if (count >= MAX_DRIVES_PER_ARRAY) {
warnx("Too many drives for a single array: max is %zu",
warnx("Too many drives for a single array: max is %d",
MAX_DRIVES_PER_ARRAY);
return (EINVAL);
}

2
usr.sbin/mfiutil/mfi_drive.c
View File

@ -149,7 +149,7 @@ mfi_pdstate(enum mfi_pd_state state)
case MFI_PD_STATE_COPYBACK:
return ("COPYBACK");
case MFI_PD_STATE_SYSTEM:
return ("SYSTEM");
return ("JBOD");
default:
sprintf(buf, "PSTATE 0x%04x", state);
return (buf);