ADSM-L

[ADSM-L] Convert to TSM Devices or use the rmt device

2015-01-22 09:36:26
Subject: [ADSM-L] Convert to TSM Devices or use the rmt device
From: "Barkes, Jason" <jason.barkes AT SSE DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 22 Jan 2015 14:32:43 +0000
Hi,
        I am installing new systems and traditionally would have converted my 
rmt devices to mt TSM devices.  Is this now a legacy activity to perform?

We are using LTO Ultrium 6 drives and whilst interrogating the rmt device I can 
see a lot more tuneable attributes than when converted to mt device and using 
the TSM devices.

lsattr -El mt61
FCPORT_ID  0x64f200                                     FC Port ID              
    True
LUNMAP_ID  0x0                                              Mapped LUN ID of 
the device True
PRODUCT_ID Ultrium 6-SCSI                       Product ID of the device    
False
WW_NAME    0x500104f000axxx1             WW Name of the Port         False
block_size 1024                                                Block Size       
           True



lsattr -El rmt61
block_size           0                                              BLOCK size 
(0=variable length)            True
delay                     45                                           Set 
delay after a FAILED command          True
density_set_1  0                                              DENSITY setting 
#1                        True
density_set_2  0                                              DENSITY setting 
#2                        True
extfm                    no                                           Use 
EXTENDED file marks                   True
location                                                               Location 
Label                            True
lun_id                   0x0                                         Logical 
Unit Number ID                    False
mode                    yes                                         Use DEVICE 
BUFFERS during writes          True
node_name      0x500104f00cxxxxx         FC Node Name                           
   False
res_support       yes                                         RESERVE/RELEASE 
support                   True
ret_error             no                                           RETURN error 
on tape change or reset      True
rwtimeout          1200                                       Set timeout for 
the READ or WRITE command True
scsi_id                  0xc8dc00                              SCSI ID          
                         False
var_block_size 0                                              BLOCK SIZE for 
variable length support    True
ww_name           0x500104f00cxxxxxx       FC World Wide Name                   
     False

Many Thanks, Jason.
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