[Gluster-users] GlusterFS, move files, Samba ACL...

[ Received no feedback, i resend it... ] A little strange things, but i'm hitting my head on the wall... I needed to 'enlarge' my main filesystem (XFS backed-up), that contain my main samba share and a brick for a GFS share; i've setup a new volume (for the VM), formatted XFS, move all the

[Gluster-users] GlusterFS, move files, Samba ACL...

A little strange things, but i'm hitting my head on the wall... I needed to 'enlarge' my main filesystem (XFS backed-up), that contain my main samba share and a brick for a GFS share; i've setup a new volume (for the VM), formatted XFS, move all the file taking care to umount and stop GFS (so,

Re: [Gluster-users] Online upgrade - 9.x to 10.0

Hi Michael unfortunately not -- everything I tried brings me to the same situation where the peer is rejected. I have also replicated the issue in another cluster where I can experiment without issues, but not sure what I should try next... Regards, Marco On Mon, 27 Dec 2021 at 13:04, Michael

Re: [Gluster-users] Online upgrade - 9.x to 10.0

of the /var/lib/glusterd directory, probe one of the other nodes and restart the affected node. Regards, Marco On Fri, 19 Nov 2021 at 05:26, Nikhil Ladha wrote: > Hi Marco > > The checksum difference refers to the difference in the contents of the > `var/lib/glusterd` directory. M

[Gluster-users] Online upgrade - 9.x to 10.0

d to clean up /var/lib/glusterd without success. Am I missing something? Downgrading again to 9.3 works again. All my volumes are distributrd_replicate and the cluster is composed by 3 nodes. Thanks, Marco Community Meeting Calendar: Schedule - Every 2nd and 4th Tuesday at 14:30 I

Re: [Gluster-users] Issues with glustershd with release 8.4 and 9.1

Srijan no problem at all -- thanks for your help. If you need any additional information please let me know. Regards, Marco On Thu, 27 May 2021 at 18:39, Srijan Sivakumar wrote: > Hi Marco, > > Thank you for opening the issue. I'll check the log contents and get back > to you

Re: [Gluster-users] Issues with glustershd with release 8.4 and 9.1

Srijan thanks a million -- I have opened the issue as requested here: https://github.com/gluster/glusterfs/issues/2492 I have attached the glusterd.log and glustershd.log files, but please let me know if there is any other test I should do or logs I should provide. Thanks, Marco On Wed, 26

Re: [Gluster-users] Issues with glustershd with release 8.4 and 9.1

Ravi, thanks a million. @Mohit, @Srijan please let me know if you need any additional information. Thanks, Marco On Tue, 25 May 2021 at 17:28, Ravishankar N wrote: > Hi Marco, > I haven't had any luck yet. Adding Mohit and Srijan who work in glusterd > in case they have some inputs

Re: [Gluster-users] Issues with glustershd with release 8.4 and 9.1

Hi Ravi just wondering if you have any further thoughts on this -- unfortunately it is something still very much affecting us at the moment. I am trying to understand how to troubleshoot it further but haven't been able to make much progress... Thanks, Marco On Thu, 20 May 2021 at 19:04, Marco

Re: [Gluster-users] Issues with glustershd with release 8.4 and 9.1

: 114018] [client.c:2229:client_rpc_notify] 0-VM_Storage_1-client-11: disconnected from client, process will keep trying to connect glusterd until brick's port is available [{conn-name=VM_Storage_1-client-11}] On Thu, 20 May 2021 at 18:54, Marco Fais wrote: > HI Ravi, > > thanks again

Re: [Gluster-users] Issues with glustershd with release 8.4 and 9.1

s_sent = 0 The other bricks look connected... Regards, Marco On Thu, 20 May 2021 at 14:02, Ravishankar N wrote: > Hi Marco, > > On Wed, May 19, 2021 at 8:02 PM Marco Fais wrote: > >> Hi Ravi, >> >> thanks a million for your reply. >> >> I have rep

Re: [Gluster-users] Issues with glustershd with release 8.4 and 9.1

performance.low-prio-threads: 32 performance.io-cache: off performance.read-ahead: off performance.quick-read: off storage.fips-mode-rchecksum: on nfs.disable: on transport.address-family: inet I have also tried to set cluster.server-quorum-type: none but with no difference. Thanks Marco On Wed, 19 May 2021

Re: [Gluster-users] Issues with glustershd with release 8.4 and 9.1

ways in the same (remote) node... i.e. they are both in node 3 in this case. That seems to be always the case, I have not encountered a scenario where bricks from different nodes are reporting this issue (at least for the same volume). Please let me know if you need any additional info. Regards, Ma

[Gluster-users] Issues with glustershd with release 8.4 and 9.1

-family: inet cluster.self-heal-daemon: enable Regards, Marco Community Meeting Calendar: Schedule - Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC Bridge: https://meet.google.com/cpu-eiue-hvk Gluster-users mailing list Gluster-users@gluster.org https://lists.gluster.org/mailman/listinfo/gluster-users

Re: [Gluster-users] high load when copy directory with many files

thank you all, just tryed set performance.nl-cache  on and worked out Il 11/04/2021 10.29, Amar Tumballi ha scritto: Hi Marco, this is really good test/info. Thanks. One more thing to observe is you are running

Re: [Gluster-users] high load when copy directory with many files

or not thank you Il 05/10/2020 19.45, Marco Lerda - FOREACH S.R.L. ha scritto: hi, we use glusterfs on a php application that have many small php files images etc... We use glusterfs in replication mode. We have 2 nodes connected in fiber with 100MBps and less than 1 ms latency. We have also

[Gluster-users] high load when copy directory with many files

hi, we use glusterfs on a php application that have many small php files images etc... We use glusterfs in replication mode. We have 2 nodes connected in fiber with 100MBps and less than 1 ms latency. We have also an arbiter on slower network (but the issue is there also without the arbiter).

Re: [Gluster-users] Problems with qemu and disperse volumes (live merge)

d to get shared "write" lock I have looked also on the bricks logs, but there is too much information there and will need to know what to look for. Not sure if there is any benefit in looking into this any further? Thanks, Marco On Thu, 2 Jul 2020 at 15:45, Strahil Nikolov wrote: &g

Re: [Gluster-users] Problems with qemu and disperse volumes (live merge)

engine logs (on the HostedEngine VM or your standalone > engine) , vdsm logs on the host that was running the VM and next - check > the brick logs. > Will do. Thanks, Marco Community Meeting Calendar: Schedule - Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC Bridge: https://blu

Re: [Gluster-users] Problems with qemu and disperse volumes (live merge)

ance.quick-read: off storage.fips-mode-rchecksum: on nfs.disable: on Unfortunately we have the issue with all VMs -- doesn't seem to depend on the allocation of storage either (thin provisioned or pre allocated). Thanks! Marco On Tue, 30 Jun 2020 at 05:12, Strahil Nikolov wrote: > Hey Marco, &g

[Gluster-users] Problems with qemu and disperse volumes (live merge)

three different clusters (same versions). Any suggestions? Thanks, Marco Community Meeting Calendar: Schedule - Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC Bridge: https://bluejeans.com/441850968 Gluster-users mailing list Gluster-users@gluster.org https://lists.gluster.org/mailman/listinfo/gluster-users

Re: [Gluster-users] VMs paused - unknown storage error - Stale file handle - distribute 2 - replica 3 volume with sharding

e replicas of the involved shard. Found identical digests. - tried to delete the shard from a replica set, one at a time, along with its hard link. Shard is always rebuilt correctly but error from client persists. Regards, -- Marco Crociani Il 22/11/18 13:19, Marco Lorenzo Crociani ha scritto: Hi

[Gluster-users] VMs paused - unknown storage error - Stale file handle - distribute 2 - replica 3 volume with sharding

/clone, manage some snapshots of these vms. The errors on the low level are "stale file handle". Volume is distribute 2 replicate 3 with sharding. Should I open a bug also on oVirt? Gluster 3.12.15-1.el7 oVirt 4.2.6.4-1.el7 Regards, -- Marc

Re: [Gluster-users] ETA for 3.10.12 (was "Planned for the 30th of Mar, 2018")

On 09/04/2018 21:36, Shyam Ranganathan wrote: On 04/09/2018 04:48 AM, Marco Lorenzo Crociani wrote: On 06/04/2018 19:33, Shyam Ranganathan wrote: Hi, We postponed this and I did not announce this to the lists. The number of bugs fixed against 3.10.12 is low, and I decided to move

Re: [Gluster-users] ETA for 3.10.12 (was "Planned for the 30th of Mar, 2018")

, it's this: https://review.gluster.org/19730 https://bugzilla.redhat.com/show_bug.cgi?id=1442983 Regards, -- Marco Crociani Thanks, Shyam On 04/06/2018 11:47 AM, Marco Lorenzo Crociani wrote: Hi, are there any news for 3.10.12 release? Regards

[Gluster-users] ETA for 3.10.12 (was "Planned for the 30th of Mar, 2018")

Hi, are there any news for 3.10.12 release? Regards, -- Marco Crociani ___ Gluster-users mailing list Gluster-users@gluster.org http://lists.gluster.org/mailman/listinfo/gluster-users

Re: [Gluster-users] Bug 1442983 on 3.10.11 Unable to acquire lock for gluster volume leading to 'another transaction in progress' error

On 16/03/2018 13:24, Atin Mukherjee wrote: Have sent a backport request https://review.gluster.org/19730 at release-3.10 branch. Hopefully this fix will be picked up in next update. Ok thanks! -- Marco Crociani Prisma Telecom Testing S.r.l

[Gluster-users] Bug 1442983 on 3.10.11 Unable to acquire lock for gluster volume leading to 'another transaction in progress' error

? Regards, -- Marco Crociani ___ Gluster-users mailing list Gluster-users@gluster.org http://lists.gluster.org/mailman/listinfo/gluster-users

Re: [Gluster-users] glusterd-locks.c:572:glusterd_mgmt_v3_lock

Hi, have you found a solution? Regards, -- Marco Crociani ___ Gluster-users mailing list Gluster-users@gluster.org http://lists.gluster.org/mailman/listinfo/gluster-users

Re: [Gluster-users] Really long df-h and high swap usage after rsync 3.7.11

user0m0.000s sys0m0.003s Should I reduce swappiness? Now it is 60. Is it really needed all that ram to mount twelve glusterfs volumes ( ~3764 GB )? Regards, -- Marco Crociani Prisma Telecom Testing S.r.l. via Petrocchi, 4 20127 MILANO ITALY Phone: +39 02 26113507 Fax: +39 02

[Gluster-users] Really long df-h and high swap usage after rsync 3.7.11

0 0 Is there any memory leak or something nasty? Regards, -- Marco Crociani Prisma Telecom Testing S.r.l. via Petrocchi, 4 20127 MILANO ITALY Phone: +39 02 26113507 Fax: +39 02 26113597 e-mail: mar...@prismatelecomtesting.com web: http://www.prismatelecomtesting.com Questa email (e I suoi

Re: [Gluster-users] gluster nfs-ganesha enable fails and is driving me crazy

Hi Soumya, Kaleb I solved installing cman Kind regards Marco Il 10/12/15 06:43, Soumya Koduri ha scritto: On 12/10/2015 02:51 AM, Marco Antonio Carcano wrote: Hi Kaleb, thank you very much for the quick reply I tried what you suggested, but I got the same error I tried both

Re: [Gluster-users] Gluster 3.7.5 - S57glusterfind-delete-post.py error

review complete, we will make it available in 3.7.7 release) Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1289935 Patch: http://review.gluster.org/#/c/12923/ Thanks for reporting the issue. regards Aravinda On 12/09/2015 03:35 PM, Marco Lorenzo Crociani wrote: Hi, # /var/lib/glusterd/hooks/1

Re: [Gluster-users] Gluster 3.7.5 - S57glusterfind-delete-post.py error

s/1/delete/post/S57glusterfind-delete-post.py", line 43, in main for session in os.listdir(glusterfind_dir): OSError: [Errno 2] No such file or directory: '/var/lib/glusterd/glusterfind' # which glusterfind /usr/bin/glusterfind Regards, Marco Crociani On 07/12/2015 14:45, Aravinda wrote

Re: [Gluster-users] gluster nfs-ganesha enable fails and is driving me crazy

ME="ganesha-ha-360" HA_VOL_SERVER="glstr01" HA_CLUSTER_NODES="glstr01v,glstr02v" VIP_glstr01v="192.168.65.250" VIP_glstr02v="192.168.65.251" but still no luck - Maybe do you have any other advice? Kind regards Marco Il 08/12/15 13:30, Kaleb KEITHLEY

[Gluster-users] gluster nfs-ganesha enable fails and is driving me crazy

nning on this node Error: cluster is not currently running on this node Kind regards Marco ___ Gluster-users mailing list Gluster-users@gluster.org http://www.gluster.org/mailman/listinfo/gluster-users

[Gluster-users] Gluster 3.7.5 - S57glusterfind-delete-post.py error

lusterd/hooks/1/delete/post/S57glusterfind-delete-post.py --volname=VOL_ZIMBRA -- Marco Crociani Prisma Telecom Testing S.r.l. via Petrocchi, 4 20127 MILANO ITALY Phone: +39 02 26113507 Fax: +39 02 26113597 e-mail: mar...@prismatelecomtesting.com web: http://www.prismatelecomtesting.com Ques

Re: [Gluster-users] Missing files after add new bricks and remove old ones - how to restore files

Any news? glusterfs version is 3.7.5 On 30/10/2015 17:51, Marco Lorenzo Crociani wrote: Hi Susant, here the stats: [root@s20 brick1]# stat .* * File: `.' Size: 78Blocks: 0 IO Block: 4096 directory Device: 811h/2065dInode: 2481712637 Links: 7 Access: (0755/drwxr-xr

Re: [Gluster-users] Missing files after add new bricks and remove old ones - how to restore files

: 2015-10-26 15:31:30.520105089 +0100 Modify: 2012-11-01 10:49:22.0 +0100 Change: 2015-10-26 15:31:30.521105091 +0100 Thanks, Marco On 30/10/2015 08:22, Susant Palai wrote: Hi Marco, Can you send the stat of the files from the removed-brick? Susant - Original Message

[Gluster-users] Missing files after add new bricks and remove old ones - how to restore files

: failed: /gluster/VOL/brick1 is already part of a volume If I use the force option I get the old files or they get erased? Should I rsync from the "unmounted" brick to the "mounted" volume or to an "umounted" brick that is part of the volume? Regards, -- Marco Crocian

Re: [Gluster-users] File changed as we read it

Hello. Tnx for the suggestion. I get an error message saying that "volume set: failed: option : cluster.consistent-metadata does not exist". -> I will upgrade next week my servers with the last version and then let you know. Marco Il 07. 10. 15 03:10, Krutika Dhananjay ha scritto:

[Gluster-users] File changed as we read it

. Any hypotesis? Marco ___ Gluster-users mailing list Gluster-users@gluster.org http://www.gluster.org/mailman/listinfo/gluster-users

[Gluster-users] Fwd: Waiting for glusterfs up and running

Marco Messaggio Inoltrato Oggetto:[Gluster-users] Waiting for glusterfs up and running Data: Tue, 22 Sep 2015 09:51:34 +0200 Mittente: Marco <marco.brign...@marcobaldo.ch> A: gluster-users@gluster.org Hello. I have a system with several VMs, tw

[Gluster-users] Waiting for glusterfs up and running

May I ask if there is any way to solve this issue with the automounter or if I have to create a script that is waiting the volumes (and which is the recommended way?)? Tnx and have a nice day Marco ___ Gluster-users mailing list Gluster-users@gluster

[Gluster-users] Bitcoin core startup and glusterfs, 100% CPU usage?

) with a mount -t glusterfs. Does anyone else have noticed a such issue with the bitcoin core and/or has and ideas on what I could verify/monitor to solve/understand this problem? Tnx in advance for help. Marco ___ Gluster-users mailing list Gluster-users

Re: [Gluster-users] AttributeError: python: undefined symbol: gf_changelog_register

are 64 bit KVM VMs, gluster3 a 32 bit physical machine deemed to be a backup server (all are up-to-date OpenSuSE 13.2). May I ask where I will find information to undertand why the geo-replication worker fails, enters the faulty state and then it is switched to xsync? Tnx Marco Il 26. 05. 15 08:21

[Gluster-users] AttributeError: python: undefined symbol: gf_changelog_register

googling but I could not find any input. Tnx in advance and have a nice day Marco ___ Gluster-users mailing list Gluster-users@gluster.org http://www.gluster.org/mailman/listinfo/gluster-users

[Gluster-users] Glusterfs -- My doubts and (few) answers

Hi. I'm using glusterfs 3.4 in replica 2 configuration. My main usage of gluster is for openstack storage backend (glance and shared storage for nova-compute) and i'm using gluster and i'm using gluster for about 1 year (not really a production environment, so a limited set of experiments is

Re: [Gluster-users] Brick is not connected (and other funny things)

error in logs) 2) Now i think i can re-start volume, so i should see an automatic healing procedure 3) All datas are replicated on server1 Can i have a confirmation about this procedure? Other volumes are affected? Please, i cannot loose my data Thanks 2014-10-03 20:07 GMT+02:00 Marco Marino marino

[Gluster-users] Brick is not connected (and other funny things)

Hi, I'm trying to use glusterfs with my openstack private cloud for storing ephemeral disks. In this way, each compute node mount glusterfs in /nova and save instances on a remote glusterfs (shared between the compute nodes, so live migration is very fast). I have 2 storage node (storage1 and

Re: [Gluster-users] Node down and volumes unreachable

: Distribute Volume ID: 83c9d6f3-0288-4358-9fdc-b1d062cc8fca Status: Started Number of Bricks: 2 Transport-type: tcp Bricks: Brick1: 12.12.123.54:/path/gluster/36779974/teoswitch_default_storage Brick2: 12.12.123.55:/path/gluster/36779974/teoswitch_default_storage Any ideas? Marco Zanger Phone 54 11

Re: [Gluster-users] Node down and volumes unreachable

-teoswitch_custom_music-client-1: connection to SERVER_B_IP:24010 failed (Connection timed out) Any ideas? From the logs I see nothing but confirm the fact that A cannot reach B which makes sense since B is down. But A is not, and it's volume should still be accesible. Right? Regards, Marco Marco

[Gluster-users] Node down and volumes unreachable

,max_read=131072) I've used both glusterfs and nfs for my tests, but when server B is down (unreachable from A) we cannot access (nor read or write) the volumes within A. Is this related to some configuration? [Description: hexacta] Marco Zanger Phone 54 11 5299-5400 (int. 5501) Clay 2954

[Gluster-users] firewall and brick ports

force gluster to use ports from 24009 all the time and use the rest sequentially? Regards, Marco ___ Gluster-users mailing list Gluster-users@gluster.org http://supercolony.gluster.org/mailman/listinfo/gluster-users

[Gluster-users] STAT Call/Reply

in 2787) STAT REPLY (Call in 2786) What are they? Is this right? Does this traffic expected or is there a way to reduce this amount of traffic? Regards, Marco ___ Gluster-users mailing list Gluster-users@gluster.org http://supercolony.gluster.org/mailman

[Gluster-users] xattrop replicate error

Hello, We've 2 replicated Gluster nodes. And we're getting the following error log. We cannot mount or access our Gluster system at this moment. We're getting this error over and over again since sunday night: [2013-03-24 21:43:00.830443] W [client3_1-fops.c:1781:client3_1_fxattrop_cbk]

[Gluster-users] Editing file with VI

Hello, Sometimes when i'm editing a file with located in Gluster with VI i get this message: W12: Warning: File test.sh has changed and the buffer was changed in Vim as well See :help W12 for more info. [O]K, (L)oad File: I've no idea what can be causing that and i'm scared. Thank you.

[Gluster-users] Fwd: Re: Editing file with VI

You have to cc the list or nobody else will see this. On Mon, 2013-02-04 at 17:42 +0100, Guillermo Marco wrote: Hello, I'm the only user on the system at this moment so it's not possible. Does Gluster modifies any part of the file indexing or something? On 02/04/2013 05:33 PM, James wrote

[Gluster-users] Fwd: Re: Fwd: Re: Editing file with VI

Hello, Yes i've my gluster system on /mnt/gluster/ If i'm editing a file with vi like this: $vi /mnt/gluster/myfile.sh Sometimes i get the error mentioned below. On 02/04/2013 05:57 PM, Joe Julian wrote: Are you editing files directly on the brick? Guillermo Marco guillermo.ma

[Gluster-users] compile glusterfs for debian squeeze

Hello, I'm compiling glusterfs for a debian squeeze. When I do a make command, I see These parameter: GlusterFS configure summary === FUSE client: yes Infiniband verbs: yes epoll IO multiplex: yes argp-standalone: no fusermount: no readline: no georeplication: yes I

Re: [Gluster-users] compile glusterfs for debian squeeze

2012/6/29 Brian Candler b.cand...@pobox.com: Do you have the relevant -dev packages installed? e.g. libreadline-dev, libfuse-dev? Thank you for your reply. I have installed libreadline-dev and libfuse-dev and now these is the result of make command GlusterFS configure summary

Re: [Gluster-users] compile glusterfs for debian squeeze

2012/6/29 Marco Agostini comunelev...@gmail.com: How can I resolve these ? argp-standalone    : no fusermount         : no I've execute these ./configure --enable-fusermount and these is the result: GlusterFS configure summary === FUSE client: yes Infiniband

Re: [Gluster-users] compile glusterfs for debian squeeze

2012/6/29 Brian Candler b.cand...@pobox.com: You just read configure.ac  dnl Check for argp  AC_CHECK_HEADER([argp.h], AC_DEFINE(HAVE_ARGP, 1, [have argp]))  AC_CONFIG_SUBDIRS(argp-standalone)  BUILD_ARGP_STANDALONE=no  if test x${ac_cv_header_argp_h} = xno; then    

[Gluster-users] Fwd: Re: Can't run KVM Virtual Machines on a Gluster volume

Use cache=writeback -- Messaggio inoltrato -- Da: Marco Agostini comunelev...@gmail.com Data: 23/giu/2012 22:53 Oggetto: Re: [Gluster-users] Can't run KVM Virtual Machines on a Gluster volume A: Fernando Frediani (Qube) fernando.fredi...@qubenet.net Il giorno 23/giu/2012 22:16

Re: [Gluster-users] 3.2.1 - sometimes network outages

2011/7/13 Christopher Anderlik christopher.ander...@xidras.com: hi list, we use glusterfs 3.2.1 with this configuration (one server - one client): Volume Name: office-data Type: Replicate Status: Started Number of Bricks: 1 Transport-type: tcp Bricks: Brick1:

Re: [Gluster-users] Use of reserved ports

2011/7/9 gluster1...@akxnet.de: How can I prevent gluster from accessing these ports? post some information too: - gluster version ? - client used to mount gluster (native client, nfs ?) ___ Gluster-users mailing list Gluster-users@gluster.org

[Gluster-users] bash exit code when mount command failed

Hy, when a mount command fail (for some reason, server unavailable, volume not exists) the system don't show any error message. I know that I can find the error on client-side in /var/log/glusterfs/*.log I'm using glusterfs 3.2.1 and glusterd 3.2.1 These is the command that I'm using on

Re: [Gluster-users] bash exit code when mount command failed

2011/7/11 Darren Austin darren-li...@widgit.com: I had noticed the same thing, and intended to post a note about it too :) The way I worked around this issue is to use the mountpoint command directly after the mount. Eg: mount -t glusterfs server:volume /mnt mountpoint /mnt echo $?

Re: [Gluster-users] Unexpected behaviour during replication heal

. -- You can verify that directly from your client log... you can read that: [2011-06-28 13:28:17.484646] I [client-lk.c:617:decrement_reopen_fd_count] 0-data-volume-client-0: last fd open'd/lock-self-heal'd - notifying CHILD-UP Marco

Re: [Gluster-users] Unexpected behaviour during replication heal

2011/6/29 Darren Austin darren-li...@widgit.com: There is no sync between the two servers in the situation I outlined, and the client cannot trigger a self-heal as you suggest because the client is effectively dead in the water until it's forcibly killed and re-mounted. some information: -

Re: [Gluster-users] Unexpected behaviour during replication heal

2011/6/29 Marco Agostini comunelev...@gmail.com: - all GlusterFS version (server and client) are the same ? (glusterfs -v) from your mnt.log I've seen that you are using GlusterFS-3.1.0 on your server. Actualy I'm using Gluster 3.2.1 and works very fine. I'm making test similar to your test

[Gluster-users] Difference type of volume in GlusterFS

Hi, I have read the documentation on www.gluster.com but I don't understand the difference from some volume type. I know that Replicated is similar to a RAID1 on 2 server, but I don't understand how work Distributed and Striped volume. Someone can help me to understand ? thank you very much.