Configuration NAS Mnemosyne

Here is the page dedicated to our home NAS (Synology NAS DS409+), called Mnemosyne.

• Disk Station Manager: http://mnemosyne:5000
• Admin account: admin

First install

• Mounted 4 harddrives Western Digital Caviar Green 2TB WD20EADS
• Plugged power & Ethernet (on home intranet), then power on.
• (under Linux) Launched DSAssistant.i386... Server not found
• (reboot in Windows) Launched Synology Assistant... found!
• Step-by-step installation (see data below)
• Disk formatting (system partition / data partition)
• Logged into Disk Station Manager (see data below)
  • !!! login does not work with Internet Explorer (password not accepted) !!!
• Set up language
• Set up e-mail notification
• Created volume
• Created users
• Created shared folders
• Defined file sharing (windows,NFS)

Configuration

• System
  • Network
    • Server Name: Mnemosyne
    • Network config: automatic (DHCP)
  • Language
    • Display: English
  • Time
    • Time zone: (UTC+01:00) Brussels, Copenhagen, Madrid, Paris
  • Notification
    • SMTP server: smtp.scarlet.be
    • SMTP port: 25
    • Primary mail: michael.peeters@scarlet.be
    • Secondary mail: michael.peeters@noekeon.be
  • Power
    • Scheduled Power On: Weekdays, 17:30
    • Scheduled Power Off: Daily, 02:00
  • Firmware Update:
    • Version: DSM 2.1-0844 on 2009/04/21 (file synology_ppc853x_409+_0844.pat)
• Privileges
  • Users:
    • admin (admin user)
    • guest (enabled)
    • backup (User to create backup)
    • movies (store movies)
    • musics (store musics)
    • photos (Store photos)
    • videos (Store videos)
  • Shared folder
    • backup (For PC backups) (group Users: RO - user backup: RW)
    • movies (DVD Movies, SVCD...) (group Users: RO - user movies: RW)
    • musics (Audio CD, mp3, ogg...) (group Users: RO - user musics: RW)
    • photos (Photos album) (group Users: RO - user photos: RW:)
    • public (Public folder) (group Users: RW)
    • videos (Family videos...) (group Users: RO - user videos: RW:)
• Storage
  • Volume
    • Volume 1: 4 disk volume, RAID 5, Complete consistency check
• File Sharing
  • Win/Mac OS
    • Enable Windows file service: enabled
      • Enable Windows file service
      • Workgroup: HELL
      • Optimize CIFS database operations: disabled (see [1])
      • Enable Local Master Broser: disabled
      • Enable CIFS Recycle Bin: disabled
    • Enable AppleTalk: disabled
  • NFS
    • NFS Service: enabled

To Do

• Enable NFS?
• Windows file sharing - what is CIFS?

Statistics

Some statistics related to our NAS

Task	Source	Size	Time	Rate
DVD to NAS	Unicorn	4,23GB	15m48s	avg 4,687kB/s, peak 7,290kB/s
DVD to NAS	Unicorn	4,32GB	16m03s	avg 4,708kB/s, peak 7,701kB/s
DVD to NAS	Unicorn	3,93GB	14m34s	avg 4,717kB/s, peak 7,553kB/s
DVD to HDD	Unicorn	3,65GB	4m49s	avg 13,263kB/s, peak 19,393kB/s
HDD to NAS	Unicorn	3,65GB	~7m00s	avg 8,900kB/s
DVD to NAS	Unicorn	3,65GB	11m23s	avg 5,612kB/s, peak 7,848kB/s

How-To

SSH

• Enable SSH service
• To have root access, log in as user root, and use same password as admin account.

NFS

• Enabled NFS service
• Edited NFS privilege for share volume1/backup, allow rw, for client minimoy

Then from NFS client, tried

$ sudo mkdir -p /net/mnemosyne/backup
$ sudo mount mnemosyne:/volume1/backup /net/mnemosyne/backup
mount.nfs: access denied by server while mounting mnemosyne:/volume1/backup

Looking into NAS file /var/log/messages (need to ssh as root on the NAS), there is the line:

 ... refused mount request from HOST00245402988d.HELL for /volume1/backup (/): no export entry

So it seems that the connection is refused because the DNS name of the NFS client does not match the export line in file /etc/exports

 /volume1/backup minimoy.HELL(rw,no_wdelay,no_root_squash,insecure_locks,anonuid=0,anongid=0)

Found a working recipe on this page:

• Content of file /etc/exports

 /volume1/backup 172.19.100.102(rw,no_wdelay,no_root_squash,insecure_locks,anonuid=0,anongid=0)

• Touched file /var/lib/nfs/rmtab (because non-existent), :

$ touch /var/lib/nfs/rmtab
$ cd /
$ /usr/sbin/exportfs -a            # Update list of exported filesystem

• On NFS client, mount the NFS share with:

$ sudo mount mnemosyne:/volume1/backup /net/mnemosyne/backup

Open issues:

• How to make it work using hostname instead of IP addess? Additional problem is that at each boot DNS Relay table on the ADSL router is reset to 'HOSTxxxxxxxxxxx' for wired interface on the NFS client, hence making it not recognizable for the NFS server.
• How to deal with Access Control? I want root to be mapped to nobody, and write access only allowed for one user (which requires password to login)?