Home » HITACHI EXPORT TOOL: El amigo invisible

HITACHI EXPORT TOOL: El amigo invisible

Los sistemas de almacenamiento enterprise no suelen facilitar la recolección de datos para medir el rendimiento de los distintos subsistemas a través de protocolos abiertos,  por ejemplo mediante consultas SNMP. Si un sistema necesita ser monitorizado para abordar un problema de rendimiento, realizar un estudio de utilización o la obtención de datos para un plan de capacidad, deberá  adquirir un producto licenciado aparte, como Tuning Manager en el caso de sistemas Hitachi.

 

VSP Inside

-Fig1.Esquema interno de Hitachi VSP-

Para los modelos de cabinas Hitachi 9900V / USP / NSC55 / USP-V / USP-VM / VSP existe una alternativa:  Export Tool – ésta herramienta va incluida en el CD que contiene el microcódigo instalado en la cabina, de forma que cada versión de microcódigo tiene su versión específica-. Se trata de una aplicación java (multiplataforma) que se ejecuta desde la línea de comandos desde un equipo con conectividad LAN con la SVP de la cabina y que obtiene los estadísticas de rendimiento en ficheros con formato CSV. El hecho de que no disponga de una interfaz gráfica, que su configuración no sea trivial, junto con que esté casi escondida entre los CDs de soporte hace que no sea demasiado utilizada por administradores.

Todo lo que se  observa desde Perfomance Monitor – elemento de la herramienta de administración Storage Navigator incluida entre el conjunto de herramientas básicas de gestión (Hitachi Basic Operating System)-, puede ser almacenado  en ficheros csv  mediante Export Tool. Performance Monitor proporciona detalles en profundidad del rendimiento de todos los elementos del sistema, incluyendo discos, volúmenes, procesadores, cache, puertos, etc. Incluso permite monitorizar el estado de copias remotas y locales de Mainframe y Open. Es la herramienta de troubleshooting y análisis esencial para la resolución de problemas de rendimiento en sistemas Hitachi 9900V / USP / NSC55 / USP-V / USP-VM / VSP. Su uso es bajo demanda y no permite monitorizar y generar alertas en modo desatendido.

 

Usando Performance Monitor y Export Tool 

 

El primer paso es habilitar la recolección de estadísticas desde la pestaña de Performance Monitor (PM) en Storage Navigator. PM dispone dos tipos de rangos para recoger y almacenar estadísticas del sistema:

 

– short range: Permite definir un intervalo de entre cada toma de datos (entre 1 y 15 min) y guarda 1440 muestras.

– long range: Recolecta datos al intervalo fijo de 15 min entre cada adquisición y los almacena durante 3 meses.

 

La instalación de Export Tool es tan sencilla como descomprimir un paquete en un directorio. El programa java lee el archivo de configuración “command.txt”. Sobre este fichero se definen los elementos sobre los que se quiere extraer información y el subconjunto de tiempo, si no se quiere disponer de todos los valores almacenados. Además existen otros modificadores para presentar la información comprimida, decidir si se sobreescribe en el directorio de salida, etc.

 

Los tipos de valores se guardan organizados en formato csv son:

 

– Valores relativos : Tasa de utilización del recurso (en %). Obtenidos mediante un cálculo interno. Los archivos con estos datos tienen el prefijo "Phy" (PHYSICAL).

– Valores absolutos : Contienen valores medidos en el recurso durante el intervalo especificado (IO/sec, KB/sec, …)

 

Para los valores relativos existe una regla práctica (publicada en el portal de soporte de HDS) definiendo los umbrales de utilización aconsejados :

 

– Front end CHP utilization should be less than 70%.

– Back end DKP utilization should be less than 50%.

– Write Pending should average less than 30%.

– Array Group utilization should be less than 50%.

– LDEV utilization depends on the response time requirements of the application. To provide good response times, utilization should be below 50%.

 

A partir de aquí pueden definirse alertas sobre elementos según estos umbrales y realizar una redistribución de recursos en el sistema de almacenamiento para equilibrarlos, por ejemplo para un distribución de los puertos de fibra entre los hosts con mayor actividad o distribuir volúmenes en parity groups menos utilizados.

Los valores absolutos permiten representar “los números” de nuestro sistema de almacenamiento: IO/sec, KB/sec y representar gráficamente de forma sencilla el comportamiento de sistemas y aplicaciones a lo largo de un periodo de tiempo, por ejemplo las últimas 24h o la evolución de la carga semanal.

Recoger estos valores de forma periódica permite disponer fácilmente de la evolución del uso del almacenamiento en el tiempo, comparando estadísticas entre meses, años, etc. A partir de aquí, la imaginación y la destreza de cada uno para manejar este tipo de archivos y su representación gráfica o la integración con otras herramientas (splunk, nagios, pnp4nagios, …) marcan el límite.

 

About Jose Luis Viñas

10+ years experienced IT systems engineer (5+ working in critical environments). Strong background delivering quality and reliable services based on client needs and providing rapid responses to user requests. Focus on UNIX systems, storage infrastructure and backup systems.

No Responses to “HITACHI EXPORT TOOL: El amigo invisible”

  1. splice.com dice:

    Thanks on your marvelous posting! I truly enjoyed reading it, you’re a great author.
    I will make sure to bookmark your blog and will come back sometime soon. I want
    to encourage you to ultimately continue your great work, have a nice day!

  2. Yes! Finally something about cameradb.review.

  3. Thanks for another great post. Where else may anyone get that
    type of information in such an ideal way of writing? I have a presentation next week, and I am at the search for such info.

  4. I visit everyday a few websites and blogs to read posts,
    but this blog provides feature based writing.

  5. www.fcc.gov dice:

    each time i used to read smaller content which as well clear their
    motive, and that is also happening with this post which I am
    reading at this time.

  6. splice.com dice:

    Admiring the commitment you put into your blog and in depth information you offer.
    It’s awesome to come across a blog every once in a while that isn’t the
    same out of date rehashed information. Great read! I’ve saved your site and I’m adding your RSS feeds to my Google account.

  7. Howdy! Quick question that’s entirely off topic. Do you know how
    to make your site mobile friendly? My site looks weird when browsing from my apple iphone.
    I’m trying to find a template or plugin that
    might be able to fix this problem. If you have
    any suggestions, please share. Cheers!

  8. I like the helpful information you provide in your articles.
    I’ll bookmark your weblog and check again here
    frequently. I’m quite sure I’ll learn a lot of new stuff right
    here! Best of luck for the next!

  9. My brother suggested I might like this web site. He was entirely right.
    This post actually made my day. You can not imagine simply how much time I had spent for this info!
    Thanks!

  10. imoodle.win dice:

    Just wish to say your article is as amazing.

    The clearness on your submit is simply great and i can suppose you’re an expert on this subject.
    Fine with your permission let me to take hold of your RSS feed
    to keep updated with drawing close post. Thanks one million and please
    continue the rewarding work.

  11. You ought to be a part of a contest for one of the best blogs online.
    I am going to highly recommend this website!

  12. This website was… how do you say it? Relevant!!
    Finally I’ve found something which helped me. Appreciate it!

  13. Pretty section of content. I just stumbled upon your web site and in accession capital to assert
    that I get actually enjoyed account your blog posts. Anyway I
    will be subscribing to your feeds and even I achievement you access consistently quickly.

  14. I was wondering if you ever thought of changing the page layout of your site?
    Its very well written; I love what youve got to say. But maybe you could a little more in the way of
    content so people could connect with it better.
    Youve got an awful lot of text for only having 1 or two
    images. Maybe you could space it out better?

  15. telegra.ph dice:

    Hi there, just became aware of your blog through Google, and found that it is truly informative.
    I’m gonna watch out for brussels. I’ll appreciate if you continue this
    in future. A lot of people will be benefited from your writing.

    Cheers!

  16. mnasaty.net dice:

    Heya this is kinda of off topic but I was wondering if blogs use WYSIWYG editors or
    if you have to manually code with HTML. I’m starting a blog
    soon but have no coding knowledge so I wanted to get guidance from someone with experience.

    Any help would be enormously appreciated!

  17. brewwiki.win dice:

    Thank you for the auspicious writeup. It in fact was once a entertainment
    account it. Glance complicated to more introduced agreeable from you!
    By the way, how can we be in contact?

  18. Amazing! Its in fact amazing post, I have got much clear idea on the topic of from this piece of
    writing.

  19. Really when someone doesn’t understand then its
    up to other people that they will assist, so here it happens.

  20. This post is actually a good one it assists
    new web viewers, who are wishing in favor of blogging.

  21. Spot on with this write-up, I truly believe this website needs a great deal more attention. I’ll probably be returning
    to read through more, thanks for the advice!

  22. Hi to all, because I am genuinely eager of reading this webpage’s
    post to be updated regularly. It contains nice data.

  23. What’s up, for all time i used to check weblog posts here early in the daylight, since
    i love to gain knowledge of more and more.

  24. Hi, just wanted to say, I enjoyed this post. It was funny.
    Keep on posting!

  25. Hello There. I found your blog using msn. This is an extremely well written article.
    I will make sure to bookmark it and return to read
    more of your useful information. Thanks for the
    post. I’ll definitely comeback.

  26. Thank you for some other informative web
    site. The place else may I get that type of information written in such
    a perfect approach? I have a project that I am simply now running on, and I’ve been at the glance out for such info.

  27. This is a topic that is close to my heart… Thank you!
    Where are your contact details though?

  28. I don’t know whether it’s just me or if perhaps everyone else encountering problems with your site.
    It appears as though some of the written text on your content are running off
    the screen. Can somebody else please provide feedback and let me know if this is happening to them too?
    This might be a issue with my internet browser because I’ve had this happen before.

    Thank you

  29. Hi there Dear, are you really visiting this site daily,
    if so after that you will absolutely get good knowledge.

  30. vr-hell.com dice:

    I am sure this post has touched all the internet viewers, its really really fastidious paragraph
    on building up new web site.

  31. We stumbled over here from a different page and thought I might as well check things out.
    I like what I see so i am just following you.

    Look forward to going over your web page repeatedly.

  32. Ridiculous story there. What occurred after?

    Take care!

  33. At this moment I am ready to do my breakfast, when having my breakfast coming again to read additional news.

  34. Thanks for sharing your info. I really appreciate your efforts and I
    will be waiting for your further post thank you once again.

  35. Today, I went to the beach front with my kids. I found a sea shell and gave it to my 4 year old daughter and said «You can hear the ocean if you put this to your ear.» She put the shell to her ear and screamed.

    There was a hermit crab inside and it pinched her ear.
    She never wants to go back! LoL I know this is completely off topic but I
    had to tell someone!

  36. Wow! After all I got a webpage from where I can in fact get
    useful facts regarding my study and knowledge.

  37. Hello, I would like to subscribe for this weblog to take
    hottest updates, thus where can i do it please help out.

  38. I’ve been exploring for a bit for any high-quality articles or blog posts on this kind
    of area . Exploring in Yahoo I finally stumbled upon this site.

    Reading this information So i’m satisfied to exhibit that I have an incredibly excellent uncanny
    feeling I discovered just what I needed. I so much definitely will make sure to don?t overlook this site and provides it a look regularly.

  39. notes.io dice:

    Can I simply just say what a comfort to find someone
    that actually knows what they are discussing online.

    You certainly realize how to bring an issue to light and make it important.
    A lot more people really need to check this out and understand
    this side of your story. I was surprised you are not more popular since you
    most certainly have the gift.

  40. Can you tell us more about this? I’d like to find out more details.

  41. genius.com dice:

    Wonderful beat ! I wish to apprentice even as you amend your
    web site, how can i subscribe for a weblog website?
    The account aided me a applicable deal. I had been a little bit familiar of this your broadcast
    offered brilliant transparent idea

  42. What’s up, just wanted to tell you, I enjoyed this article.

    It was funny. Keep on posting!

  43. My brother suggested I may like this website. He was once totally right.
    This publish actually made my day. You cann’t imagine simply how a lot time I had
    spent for this information! Thank you!

  44. Greetings! Very useful advice within this article!
    It’s the little changes that make the most significant changes.
    Many thanks for sharing!

  45. qooh.me dice:

    I’m not sure why but this website is loading extremely slow for me.

    Is anyone else having this problem or is it a problem on my end?

    I’ll check back later and see if the problem still exists.

  46. After going over a number of the blog posts on your web site, I
    seriously appreciate your technique of blogging. I book-marked it to my bookmark webpage
    list and will be checking back soon. Please visit my website as
    well and let me know your opinion.

  47. www.fcc.gov dice:

    At this time I am going to do my breakfast, later than having my breakfast coming again to read further news.

  48. alra7al.net dice:

    This post is invaluable. Where can I find out more?

  49. Greetings! Very useful advice within this post! It’s the little
    changes that make the largest changes. Thanks a lot for
    sharing!

  50. It’s not my first time to go to see this site, i am browsing this site dailly and obtain good
    information from here every day.

Deja una respuesta

Tu dirección de correo electrónico no será publicada. Los campos obligatorios están marcados con *