[pve-devel] restrict scsi-block to /dev/disk/

Alexandre DERUMIER aderumier at odiso.com
Mon Mar 12 09:11:17 CET 2012


Ok, got it ! I'll read the doc to see how it's work. (I like to learn new things ;)

currently with my iscsi I have these majors


8
65
66
67
68
69
70
71
128
129
130
131
132
133
134
135

----- Mail original ----- 

De: "Dietmar Maurer" <dietmar at proxmox.com> 
À: "Alexandre DERUMIER" <aderumier at odiso.com> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Lundi 12 Mars 2012 08:56:52 
Objet: RE: [pve-devel] restrict scsi-block to /dev/disk/ 

Each unix device has a major and minor number: 

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob;f=Documentation/devices.txt;h=00383186d8fb3e2c0fc4d5a12852844cb5b2721f;hb=fde7d9049e55ab85a390be7f415d74c9f62dd0f9 

see 'man fstat' for detailes on how toö get those numbers (st_dev field) 

alse see: 'man mknod' and 'man 2 mknod' 

- Dietmar 



> -----Original Message----- 
> From: Alexandre DERUMIER [mailto:aderumier at odiso.com] 
> Sent: Montag, 12. März 2012 08:44 
> To: Dietmar Maurer 
> Cc: pve-devel at pve.proxmox.com 
> Subject: Re: [pve-devel] restrict scsi-block to /dev/disk/ 
> 
> I don't known what is major/minor ;) 
> 
> Could you provide an example ? 
> 
> ----- Mail original ----- 
> 
> De: "Dietmar Maurer" <dietmar at proxmox.com> 
> À: "Alexandre DERUMIER" <aderumier at odiso.com> 
> Cc: pve-devel at pve.proxmox.com 
> Envoyé: Lundi 12 Mars 2012 08:26:46 
> Objet: RE: [pve-devel] restrict scsi-block to /dev/disk/ 
> 
> > Why do you mean by major/minor device number ? 
> > 
> > 
> > we can also try to test if 
> > 
> > /sys/block/sdXXX/device/scsi_device 
> > 
> > exist 
> > 
> > 
> > /dev/disk/by-id/scsi-XXXX are symlink to /dev/sdX 
> 
> But testing major/minor requires one simple stat call - isn't that easier? 
> 
> - Dietmar 
> 
> 
> 
> -- 
> 
> -- 
> 
> 
> 
> 
> Alexandre D erumier 
> Ingénieur Système 
> Fixe : 03 20 68 88 90 
> Fax : 03 20 68 90 81 
> 45 Bvd du Général Leclerc 59100 Roubaix - France 
> 12 rue Marivaux 75002 Paris - France 
> 




-- 

-- 




	Alexandre D erumier 
Ingénieur Système 
Fixe : 03 20 68 88 90 
Fax : 03 20 68 90 81 
45 Bvd du Général Leclerc 59100 Roubaix - France 
12 rue Marivaux 75002 Paris - France 
	


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